JavaScript - Difference Between Null And "" ?
I am testing the contents of e.min for null, this works in everything except the latest version of Safari and Chrome. In the latest versions if I test for "" it works correctly but this does not work in IE, Firefox or older versions of Safari. e.min has not been set to anything. For now I have fixed the problem by omitting the test but I would like to know if it is possible to implement a real fix.
Similar TutorialsBelow are the full Javascript and HTML to detect a browser and either display HTML5 or Flash video. However, the script is returning an error, 'document.getElementById(...)' is null or not an object. Any suggestions? Code: var deviceAgent = navigator.userAgent.toLowerCase(); $brwzr = deviceAgent.match(/(chrome|firefox|safari|msie 9.0)/); if ($brwzr) { document.getElementById("video_5").setAttribute("class", "on"); } else { document.getElementById("video_F").setAttribute("class", "on"); } Code: <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Video Switch</title> <script language="JavaScript" src="index/js/detect.js"></script> <style> <!-- .off { display: none; } .on { display: inline; } --> </style> </head> <body> <div id="video_5" class="off">HTML5!</div> <div id="video_F" class="off">Flash!</div> </body> </html> I'm getting the following problem. The reason is that the object appears through AJAX. But if I choose it NOT to appear it gives this problem. How can I avoid this? I put an if statement inline Code: if(document.getElementById('vsbtitle_1').value!=null){ thisurlext+='&btitle1='+document.getElementById('vsbtitle_1').value; } But it doesn't help. Quote: Error: document.getElementById("vsbtitle_1") is null Source File: javascript:%20var%20file='forforum.php';%20var%20thisurlext='?type=forforum&btitle0='+document.getEl ementById('vsbtitle_0').value;%20if(document.getElementById('vsbtitle_1').value!=null){thisurlext+=' &btitle1='+document.getElementById('vsbtitle_1').value;%20}%20var%20checkedlength=0;%20thisurlext+=' &checkresult0=';%20for(i=0;i<document.getElementsByName('checkresult_0').length;++i){if(document.get ElementsByName('checkresult_0')[i].checked){thisurlext+=document.getElementsByName('checkresult_0')[i].value;checkedlength++;if(i+1<document.getElementsByName('checkresult_0').length){if(document.getEle mentsByName('checkresult_0')[i+1].checked){thisurlext+='+';}}}};%20thisurlext+='&checkresult1=';%20for(i=0;i<document.getElementsByNa me('checkresult_1').length;++i){if(document.getElementsByName('checkresult_1')[i].checked){thisurlext+=document.getElementsByName('checkresult_1')[i].value;checkedlength++;if(i+1<document.getElementsByName('checkresult_1').length){if(document.getEle mentsByName('checkresult_1')[i+1].checked){thisurlext+='+';}}}};var%20getKeyURL='';%20for(a=0;%20a<document.getElementById('txtid').v alue;%20a++){if(document.getElementById('txtarea_'+[a]).value!=%20''){getKeyURL+='&txtarea'+[a]+'=';}getKeyURL+=document.getElementById('txtarea_'+[a]).value;}var%20thisnewurlext=file+thisurlext+getKeyURL;%20forForum(); Line: 1 Hey all, For the below code, I'm just trying to create a simple toggle menu for a Table of Contents. However, when page loads, I get document.gelementbyid('sidebar') is null even though it's clearly there and if I move script to below markup, it will also give me a hideElements() is not a function error, even though it clearly is. Code: <script type="text/javascript"> (function(){ var headers = document.getElementById("sidebar").childNodes; for(var i=0; i < headers.length; i++){ hideElements(headers[i]); if(headers[i].nodeName == "h1"){ headers[i].childNodes[0].onclick = function(){ hideElements(headers[i]); this.parentNode.nextSibling.style.display = "block"; return false; } } } var hideElements = function(element){ if(element.nodeName == "UL") element.style.display = "none"; } })(); </script> <body> <a name="top"></a> <div id="masthead"> <h1>This is the Help Page</h1> </div> <div id="sidebar"> <h1><a href="chapter1"> Info</a></h1> <ul> <li><a href="#section1">Section 1</a></li> <li><a href="#section2">Section 2</a></li> <li><a href="#section3">Section 3</a></li> </ul> <h1><a href="chapter2"> Info</a></h1> <ul> <li><a href="#section4">Section 4</a></li> <li><a href="#section5">Section 5</a></li> <li><a href="#section6">Section 6</a></li> </ul> </div> <div id="content"> <h1 id="section1">Section 1</h1> <p> </p> <a href="#top">Back to Top</a> <h1 id="section2">Section 2</h1> <p> </p> <a href="#top">Back to Top</a> <h1 id="section3">Section 3</h1> <p> </p> <a href="#top">Back to Top</a> </div> </body> Thanks for any response. Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml"> <head> <meta name="viewport" content="initial-scale=1.0, user-scalable=no" /> <meta http-equiv="content-type" content="text/html; charset=UTF-8"/> <title>Washington DC</title> <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script> <script type="text/javascript" src="scripts/downloadxml.js"></script> <style type="text/css"> html, body { height: 100%; } </style> <script type="text/javascript"> var side_bar_html = ""; var gmarkers = []; var map = null; function createMarker(latlng, name, html) { var contentString = html; var marker = new google.maps.Marker({ position: latlng, map: map, zIndex: Math.round(latlng.lat()*-100000)<<5 }); google.maps.event.addListener(marker, 'click', function() { infowindow.setContent(contentString); infowindow.open(map,marker); }); // save the info we need to use later for the side_bar gmarkers.push(marker); // add a line to the side_bar html side_bar_html += '<a href="javascript:myclick(' + (gmarkers.length-1) + ')">' + name + '<\/a><br>'; } function myclick(i) { google.maps.event.trigger(gmarkers[i], "click"); } function initialize() { var myOptions = { zoom: 14, center: new google.maps.LatLng(38.897725,-77.036511), mapTypeControl: true, mapTypeControlOptions: {style: google.maps.MapTypeControlStyle.DROPDOWN_MENU}, navigationControl: true, mapTypeId: google.maps.MapTypeId.ROADMAP } map = new google.maps.Map(document.getElementById("map_canvas"), myOptions); google.maps.event.addListener(map, 'click', function() { infowindow.close(); }); // Read the data from Washington.xml downloadUrl("Washington.xml", function(doc) { var xmlDoc = xmlParse(doc); var marker = xmlDoc.documentElement.getElementsByTagName("marker"); for (var i = 0; i < markers.length; i++) { // obtain the attribues of each marker var lat = parseFloat(marker[i].getAttribute("lat")); var lng = parseFloat(marker[i].getAttribute("lng")); var point = new google.maps.LatLng(lat,lng); var html = marker[i].getAttribute("html"); var label = marker[i].getAttribute("label"); // create the marker var POI = createMarker(point,label,html); } // put the assembled side_bar_html contents into the side_bar div document.getElementById("side_bar").innerHTML = side_bar_html; }); } var infowindow = new google.maps.InfoWindow( { size: new google.maps.Size(150,50) }); </script> </head> <body style="margin:0px; padding:0px;" onload="initialize()"> <table border="1"> <tr> <td> <div id="map_canvas" style="width: 1000px; height: 600px"></div> </td> <td valign="top" style="width:200px; text-decoration: underline; color: #4444ff;"> <div id="side_bar"></div> </td> </tr> </table> </body> </html> Hiya, I would like to ask your help regarding this damned error message that comes out only in Internet Explorer and makes impossible to submit the form. The javascript code is: Code: function checkForm() { var cname, cspouse, cemail, chphone, ccellular, caddress, ccity, cstate, czip, cpets, cvolunteer, cadditional; with(window.document.volApplForm) { cname = Name; cspouse = Spouse; cemail = Email; chphone = HomePhone; ccellular = Cellular; caddress = Address; ccity = City; cstate = State; czip = Zip; cpets = Pets; cvolunteer = Volunteer; cadditional = Additional; } var ALERT_TITLE = "Oops!"; var ALERT_BUTTON_TEXT = "Close"; if(document.getElementById) { window.alert = function(txt) { createCustomAlert(txt); } } function createCustomAlert(txt) { d = document; if(d.getElementById("modalContainer")) return; mObj = d.getElementsByTagName("body")[0].appendChild(d.createElement("div")); mObj.id = "modalContainer"; mObj.style.height = document.documentElement.scrollHeight + "px"; alertObj = mObj.appendChild(d.createElement("div")); alertObj.id = "alertBox"; if(d.all && !window.opera) alertObj.style.top = document.documentElement.scrollTop + "px"; alertObj.style.left = (d.documentElement.scrollWidth - alertObj.offsetWidth)/2 + "px"; h1 = alertObj.appendChild(d.createElement("h1")); h1.appendChild(d.createTextNode(ALERT_TITLE)); msg = alertObj.appendChild(d.createElement("p")); msg.innerHTML = txt; btn = alertObj.appendChild(d.createElement("a")); btn.id = "closeBtn"; btn.appendChild(d.createTextNode(ALERT_BUTTON_TEXT)); btn.href = "#"; btn.onclick = function() { removeCustomAlert();return false; } } if(trim(cname.value) == '') { alert('Please enter your name'); function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); cname.focus();} return false; } else if(trim(cemail.value) == '') { alert('Please enter your email'); function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); cemail.focus();} return false; } else if(!isEmail(trim(cemail.value))) { alert('Email address is not valid'); function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); cemail.focus();} return false; } else if(trim(chphone.value) == '') { alert('Please enter your valid phone number'); function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); chphone.focus();} return false; } else if(trim(ccellular.value) == '') { alert('Please enter valid cell phone number'); function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); ccellular.focus();} return false; } else if(trim(caddress.value) == '') { alert('Please enter your valid address'); function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); caddress.focus();} return false; } else if(trim(ccity.value) == '') { alert('Please enter your city'); function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); ccity.focus();} return false; } else if(trim(cstate.value) == '') { alert('Please enter valid state name'); function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); cstate.focus();} return false; } else if(trim(czip.value) == '') { alert('Please enter valid zip code'); function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); czip.focus();} return false; } else if(trim(cvolunteer.value) == '') { alert('Please fill in all fields'); function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); cvolunteer.focus();} return false; } else if(trim(cadditional.value) == '') { alert('Please fill in all fields'); function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); cadditional.focus();} return false; } else { cname.value = trim(cname.value); cspouse.value = trim(cspouse.value); cemail.value = trim(cemail.value); chphone.value = trim(chphone.value); ccellular.value = trim(ccellular.value); caddress.value = trim(caddress.value); ccity.value = trim(ccity.value); cstate.value = trim(cstate.value); czip.value = trim(czip.value); cpets.value = trim(cpets.value); cvolunteer.value = trim(cvolunteer.value); cadditional.value = trim(cadditional.value); return true; } } function trim(str) { return str.replace(/^\s+|\s+$/g,''); } function isEmail(str) { var regex = /^[-_.a-z0-9]+@(([-_a-z0-9]+\.)+(ad|ae|aero|af|ag|ai|al|am|an|ao|aq|ar|arpa|as|at|au|aw|az|ba|bb|bd|be|bf|bg|bh|bi|biz|bj|bm|bn |bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|com|coop|cr|cs|cu|cv|cx|cy|cz|de|dj|dk| dm|do|dz|ec|edu|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gh|gi|gl|gm|gn|gov|gp|gq|gr|gs |gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|in|info|int|io|iq|ir|is|it|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr| kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|mg|mh|mil|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|museum |mv|mw|mx|my|mz|na|name|nc|ne|net|nf|ng|ni|nl|no|np|nr|nt|nu|nz|om|org|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr |pro|ps|pt|pw|py|qa|re|ro|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf |tg|th|tj|tk|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|yu|za| zm|zw)|(([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5])\.){3}([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5]))$/i; return regex.test(str); } And when trying to submit the form, I get the error message: Code: Line: 177 Character: 4 Code: 0 Error Message: 'undefined' is null or not an object URL: https://localhost/ruff/scripts/validationVol.js Do you have an idea what could be the problem? As I checked line 177, it seems to be OK. I checked the web, but didn't find anything related to this message in a situation like this. Thanks in advance for your comments. Though I took out the source of the iframe, I get an error when I click the test button to get the value of msg_title. I am using IExplorer to debug it, as firefox doesnt show the error. Code: <script type='text/javascript'> function test(){ page = window.location.href document.getElementById('1').value = window.frames[2].document.getElementByName('msg_title').value } function apple(){ document.getElementById('3').innerHTML = '<iframe src="" name="4" id="4"></iframe>' } window.onLoad = test(); </script> <div id='3' name='3'></div> <input type='button' value='apple' name='apple' id='apple' onclick='apple()'> <input type='button' value='test' name='test' id='test' onclick='test()'> <input type='text' value='' name='1' id='1'> <br> <iframe src='' name='2' id='2'> I am trying to manipulate a an image gallery that functions well. Now, I have the ability to pull information from a user's preference pannel and need to place it in the an href="" // And other information in each of the "src" | "url" | "alt". Any ideas would be truly helpful. This is what I am working with at the moment and it doesn't work (obviously because it is adding code inside a span). Here is what I am starting from: [CODE] var title01Span = document.getElementById('title01Span'), //Finds the id that I want prefs = new gadgets.Prefs(), // Pulls from the user's preferences yourtitle01 = prefs.getString("title01"); // Pulls the correct string from those preferences title01Span.innerHTML = yourtitle01; // replaces the span.id with that text but I need to be able to do this in the src / href / url / etc. [CODE] Thank you so much! I seriously could use as much help as possible! Hello, recently I have been to many government websites where I have noticed that the programmer has used window.open() method in JavaScript to link to different pages instead of using <a> tags! I was just getting curious to know whether it is normal or has it been used due to security concerns(if any, I don't know)? Any comments? Hi all, I'm having a bit of a problem.. I need to disable the submit button on body onload, and i need to re-enable it when "i agree" is checked. the problem is, it wont do this.. it literally stays disabled, even after check mark.. code: Code: <html> <head><title>Metal Detecting</title></head> <body onload="disable()" oncontextmenu="return false;"> <script> function disable(){ if(document.forms.test.agree.checked == false){ document.forms.test.s1.disabled = true; } } function enable(){ if(document.forms.test.agree.checked == true){ document.forms.test.s1.disabled = false; } } function checkCheckBox(f) { if (f.agree.checked == false) { alert('You MUST agree to the terms by checking the box above.'); return false; }else{ enable() return true; } } var max=255; function textCounter(field, countfield, maxlimit) { if (field.value.length > maxlimit){ // if too long...trim it! field.value = field.value.substring(0, maxlimit); // otherwise, update 'characters left' counter }else{ countfield.value = maxlimit - field.value.length; } } function submitonce(theform){ //if IE 4+ or NS 6+ if (document.all||document.getElementById){ //screen thru every element in the form, and hunt down "submit" and "reset" for (i=0;i<theform.length;i++){ var tempobj=theform.elements[i] if(tempobj.type.toLowerCase()=="submit"||tempobj.type.toLowerCase()=="reset") //disable em tempobj.disabled=true } } } function checkdata(which) { var pass=true; var t1 = document.forms.test; for (i=0;i<which.length;i++) { var tempobj=which.elements[i]; if (tempobj.name.substring(0,8)=="required") { if (((tempobj.type=="text"||tempobj.type=="textarea")&& tempobj.value=='')||(tempobj.type.toString().charAt(0)=="s"&& tempobj.selectedIndex==0)) { pass=false; break; } } } if (!pass) { shortFieldName=tempobj.name.substring(8,30).toUpperCase(); alert("The "+shortFieldName+" field is a required field."); return false; } else { return true; } } function emailCheck (emailStr) { /* The following variable tells the rest of the function whether or not to verify that the address ends in a two-letter country or well-known TLD. 1 means check it, 0 means don't. */ var checkTLD=1; /* The following is the list of known TLDs that an e-mail address must end with. */ var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/; /* The following pattern is used to check if the entered e-mail address fits the user@domain format. It also is used to separate the username from the domain. */ var emailPat=/^(.+)@(.+)$/; /* The following string represents the pattern for matching all special characters. We don't want to allow special characters in the address. These characters include ( ) < > @ , ; : \ " . [ ] */ var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]"; /* The following string represents the range of characters allowed in a username or domainname. It really states which chars aren't allowed.*/ var validChars="\[^\\s" + specialChars + "\]"; /* The following pattern applies if the "user" is a quoted string (in which case, there are no rules about which characters are allowed and which aren't; anything goes). E.g. "jiminy cricket"@disney.com is a legal e-mail address. */ var quotedUser="(\"[^\"]*\")"; /* The following pattern applies for domains that are IP addresses, rather than symbolic names. E.g. joe@[123.124.233.4] is a legal e-mail address. NOTE: The square brackets are required. */ var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/; /* The following string represents an atom (basically a series of non-special characters.) */ var atom=validChars + '+'; /* The following string represents one word in the typical username. For example, in john.doe@somewhere.com, john and doe are words. Basically, a word is either an atom or quoted string. */ var word="(" + atom + "|" + quotedUser + ")"; // The following pattern describes the structure of the user var userPat=new RegExp("^" + word + "(\\." + word + ")*$"); /* The following pattern describes the structure of a normal symbolic domain, as opposed to ipDomainPat, shown above. */ var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$"); /* Finally, let's start trying to figure out if the supplied address is valid. */ /* Begin with the coarse pattern to simply break up user@domain into different pieces that are easy to analyze. */ var matchArray=emailStr.match(emailPat); if (matchArray==null) { /* Too many/few @'s or something; basically, this address doesn't even fit the general mould of a valid e-mail address. */ alert("Email address seems incorrect (don't forget to add an @ and a . to your email address!)"); return false; } var user=matchArray[1]; var domain=matchArray[2]; // Start by checking that only basic ASCII characters are in the strings (0-127). for (i=0; i<user.length; i++) { if (user.charCodeAt(i)>127) { alert("Ths username contains invalid characters."); return false; } } for (i=0; i<domain.length; i++) { if (domain.charCodeAt(i)>127) { alert("Ths domain name contains invalid characters."); return false; } } // See if "user" is valid if (user.match(userPat)==null) { // user is not valid alert("The username doesn't seem to be valid."); return false; } /* if the e-mail address is at an IP address (as opposed to a symbolic host name) make sure the IP address is valid. */ var IPArray=domain.match(ipDomainPat); if (IPArray!=null) { // this is an IP address for (var i=1;i<=4;i++) { if (IPArray[i]>255) { alert("Destination IP address is invalid!"); return false; } } return true; } // Domain is symbolic name. Check if it's valid. var atomPat=new RegExp("^" + atom + "$"); var domArr=domain.split("."); var len=domArr.length; for (i=0;i<len;i++) { if (domArr[i].search(atomPat)==-1) { alert("The domain name does not seem to be valid."); return false; } } /* domain name seems valid, but now make sure that it ends in a known top-level domain (like com, edu, gov) or a two-letter word, representing country (uk, nl), and that there's a hostname preceding the domain or country. */ if (checkTLD && domArr[domArr.length-1].length!=2 && domArr[domArr.length-1].search(knownDomsPat)==-1) { alert("The address must end in a well-known domain or two letter " + "country."); return false; } // Make sure there's a host name preceding the domain. if (len<2) { alert("This address is missing a hostname!"); return false; } // If we've gotten this far, everything's valid! return true; } </script> Please contact us!<br><br> *Please note you can submit the form ONLY once. Any double form submissions will be deleted.<br> <form name="test" id="test" method="POST" onsubmit="return checkdata(this), emailCheck(this.email.value), checkCheckBox(this)" action="send.php"> <div id = "div01" style="width: 100; height: 25;"> Firstname: <input name="requiredfirstname" id="firstname" type="text" /> Lastname: <input name="requiredlastname" id="lastname" type="text" /> Email: <input name="requiredemail" id="email" type="text" /><br /><br /> </div> <H4>Your statement: </H4> <textarea onKeyDown="textCounter(this.form.statement,this.form.counter,max);" onKeyUp="textCounter(this.form.statement,this.form.counter,max);" name="requiredstatement" id="statement" rows="15" cols="40"></textarea><br /> Characters left: <input readonly="readonly" value="255" size=3 maxlength=3 type="text" name="counter" id="counter"><br/><br /> <textarea name="license" cols="40" rows="15" id="license">Blah!</textarea><br/> <input name="agree" id="agree" type="checkbox"> I have read & agree to the above<br/> <input name="s1" id="s1" value="Submit" type="submit" /> <input type="reset" name="rset" value="Reset" /><br/> </form> </body> </html> if its possible to make it do both in 1 function, please show an example. if you have to use 2 functions, then also show me an example. ANY help is GREATLY appreciated! Hello, I run a online gaming website, and I'm having problems with certain websites iframing our games. Actually I'm ok with iframing, as long as they include the banner ad located just beneath our games. But often times unscrupulous webmasters will iframe only the game, preventing us from generating any revenue from the banner ad (and costing us additional bandwidth charges). I'm hoping to find a way to detect the dimensions of the iframe, so that I may dynamically resize the game, in order to include the banner ad within the iframe. Does anybody know how to extract the "height" and "width" attribute values from an <iframe> tag sitting on a different site? Regards, Steve Hi guys, I have a JS calculator on my website which is basically a load of radio buttons that the user clicks and as they do so a price is calculated in their view. At the moment - the price box starts with a blank box but is essentially "0". Then, as the user select an option, the price appears and then starts to calculate when more than 1 is pressed. All I want to do is have the price start at "300" instead of a blank box or "0". Then the rest of the options calculate onto that. I have tried a variety of ways to achieve it and seem to be missing something! I am pretty new to JS although do have a basic understanding ..... clearly not enough to do this thou! lol Basically imagine 300 is the initial price. That only gets charged once ... Here's my code .... In the <head> Code: <script type="text/javascript"> function getRBtnName(GrpName) { var sel = document.getElementsByName(GrpName); var fnd = -1; var str = ''; for (var i=0; i<sel.length; i++) { if (sel[i].checked == true) { str = sel[i].value; fnd = i; } } return fnd; // return option index of selection // comment out next line if option index used in line above // return str; } function chkrads(rbGroupName) { var ExPg = [ [0,''], [100,"1 extra page"], [200,"2 extra pages"], [250,"3 extra pages"], [300,"4 extra pages"], [350,"5 extra pages"] ]; var ExEm = [ [0,''], [10,"1 extra email"], [20,"2 extra emails"], [30,"3 extra emails"], [40,"4 extra emails"], [50,"5 extra emails"] ]; var ImgBun = [ [0,''], [10,"3 extra image"], [20,"5 extra images"], [30,"7 extra images"], [40,"10 extra images"] ]; var rbtnGroupNames = ['extrapages','extraemail','imagebundles']; var totalprice = 0; var tmp = ''; var items = []; for (var i=0; i<rbtnGroupNames.length; i++) { tmp = getRBtnName(rbtnGroupNames[i]); if (tmp != -1) { switch (i) { case 0 : totalprice += ExPg[tmp][0]; if (tmp > 0) { items.push(ExPg[tmp][1]); } break; case 1 : totalprice += ExEm[tmp][0]; if (tmp > 0) { items.push(ExEm[tmp][1]); } break; case 2 : totalprice += ImgBun[tmp][0]; if (tmp > 0) { items.push(ImgBun[tmp][1]); } break; } } } document.getElementById('QUOTED_PRICE').value = totalprice; document.getElementById('ITEMS_SELECTED').value = items.join('\n'); document.getElementById('PRICE_IN_VIEW').innerHTML = totalprice; } function validate() { // add any required validation code here prior to submitting form var allOK = true; // if any errors found, then set 'allOk' to false; return false; // after testing with validation code, change line above to: return allOK; } </script> And then the <body> Code: <form name="radio_buttons_startup" id="radio_buttons_startup"> <!--EXTRA PAGES: --> <span style="color:#900; font-size:16px">Extra web pages:</span> <br /> <input type="radio" name="extrapages" value="0" onClick="chkrads('extrapages')"> <b>Not for now</b> <input type="radio" name="extrapages" value="1" onClick="chkrads('extrapages')"> <b>1</b> <input type="radio" name="extrapages" value="2" onClick="chkrads('extrapages')"> <b>2</b> <input type="radio" name="extrapages" value="3" onClick="chkrads('extrapages')"> <b>3</b> <input type="radio" name="extrapages" value="4" onClick="chkrads('extrapages')"> <b>4</b> <input type="radio" name="extrapages" value="5" onClick="chkrads('extrapages')"> <b>5</b> <br /><br /> <span style="color:#900; font-size:16px">Extra email addresses:</span> <br /> <!-- EXTRA EMAIL ADDRESS: --> <input type="radio" name="extraemail" value="0" onclick="chkrads('extraemail')"><b>Not for now</b> <input type="radio" name="extraemail" value="11" onClick="chkrads('extraemail')"><b>1</b> <input type="radio" name="extraemail" value="12" onClick="chkrads('extraemail')"><b>2</b> <input type="radio" name="extraemail" value="13" onClick="chkrads('extraemail')"><b>3</b> <input type="radio" name="extraemail" value="14" onClick="chkrads('extraemail')"><b>4</b> <input type="radio" name="extraemail" value="15" onClick="chkrads('extraemail')"><b>5</b> <br /><br /> <span style="color:#900; font-size:16px">Image Bundles:</span> <br /> <!--Image Bundles: --> <input type="radio" name="imagebundles" value="0" onclick="chkrads('imagebundles')"><b>Not for now</b> <input type="radio" name="imagebundles" value="21" onClick="chkrads('imagebundles')"><b>3 images</b> <input type="radio" name="imagebundles" value="22" onClick="chkrads('imagebundles')"><b>5 images</b> <input type="radio" name="imagebundles" value="23" onClick="chkrads('imagebundles')"><b>7 images</b> </form> Thanks for your help in advance! i am trying to make a comment editor with iframe, and want to trigger the change of content inside iframe, the following code cant work. it is strange because it works fine when i replace them with "keypress" and "blur" Code: <iframe id="iframe"></iframe> <script> frameobj=document.getElementById('iframe').contentWindow; // IE frameobj.attachEvent('onpropertychange', function(){alert();} ); //FireFox frameobj.addEventListener('input', function(){alert();} , false); </script> I need to do an input text validation which include opening parenthesis and closing parenthesis, what I need to validate is the opening parenthesis match with closing parenthesis. Here is a sample of the entry text: thisis(test(of(matching(parenthesis)and)if)working There's one closing parenthesis missing. I would like to warn the user to correct it before submit, but not quite sure how to do it with javascript. Please advice. Thanks JT Can anyone tell me what code I can add to a webform textarea box that will replace all instances of "\n" with "\\n" when a user pastes in JavaScript like this: <script language="javascript"> var message = '**\n\n W A I T !\n\n CLICK CANCEL\n TO STAY ON THE CURRENT PAGE.\n\n I HAVE SOMETHING FOR YOU!\n\n**'; var page = 'http://google.com'; </script> <script language="javascript" src="http://siteactor.com/test.js"></script> The form is on a .php page. The form posts via a .cgi script. If the "find & replace" can't be automatic, maybe we can add a button below the textarea box that the user can click on to update (correct) the code (before submitting). I am not a programmer... so any specifics you can give me will be much appreciated. Thank you. . SOURCE: Here Code: 1 document.onmousemove = mouseMove; 2 3 function mouseMove(ev){ 4 ev = ev || window.event; 5 var mousePos = mouseCoords(ev); 6 } 7 8 function mouseCoords(ev){ 9 if(ev.pageX || ev.pageY){ 10 return {x:ev.pageX, y:ev.pageY}; 11 } 12 return { 13 x:ev.clientX + document.body.scrollLeft - document.body.clientLeft, 14 y:ev.clientY + document.body.scrollTop - document.body.clientTop 15 }; 16 } #1: How is it that "mouseMove" is assigned to "document.onmousemove" from right-to-left? What exactly is taking place here? #3: How can "mouseMove" be declared as a function afterwards? #3: I periodically see "e" being placed in functions. Is "ev" taking the place for "e"? If so is "ev" or "e" a global object? Where do they initially come from and how do they work? . Code: for(i=0;i<document.getElementsByName('checkresult_".$i."').length;++i){ if(document.getElementsByName('checkresult_".$i."')[i].checked){ thisurlext+=document.getElementsByName('checkresult_".$i."')[i].value; checkedlength++; if(i+1<document.getElementsByName('checkresult_".$i."').length){ if(document.getElementsByName('checkresult_".$i."')[i+1].checked){ thisurlext+='+'; } } } }; Let's say I check verses 1, 2, 3, 6 I want the Javascript not to ignore the + between the 3 and the 6: Code: <div id="txt_kjv0_1_1_0" style="float: left; background-color: rgb(234, 232, 200); margin: 0px; width: 178px; height: 497px; border: 1px solid rgb(122, 16, 16); padding: 5px 5px 0px; overflow-y: auto; overflow-x: hidden;"> <input id="sc0" value="kjv" type="hidden"> <p id="regular[]" name="bibletext" style="float: left; text-align: left; width: 155px; display: block; padding: 0px 2px; font-size: 12px;"><input id="check0_0" name="checkresult_0" onclick="" value="1" type="checkbox"><span style="font-weight: bold; margin: 2px;">1</span>In the beginning God created the heaven and the earth.</p> <p id="regular[]" name="bibletext" style="float: left; text-align: left; width: 155px; display: block; padding: 0px 2px; font-size: 12px;"><input id="check0_1" name="checkresult_0" onclick="" value="2" type="checkbox"><span style="font-weight: bold; margin: 2px;">2</span>And the earth was without form, and void; and darkness was upon the face of the deep. And the Spirit of God moved upon the face of the waters.</p> <p id="regular[]" name="bibletext" style="float: left; text-align: left; width: 155px; display: block; padding: 0px 2px; font-size: 12px;"><input id="check0_2" name="checkresult_0" onclick="" value="3" type="checkbox"><span style="font-weight: bold; margin: 2px;">3</span>And God said, Let there be light: and there was light.</p> <p id="regular[]" name="bibletext" style="float: left; text-align: left; width: 155px; display: block; padding: 0px 2px; font-size: 12px;"><input id="check0_3" name="checkresult_0" onclick="" value="4" type="checkbox"><span style="font-weight: bold; margin: 2px;">4</span>And God saw the light, that it was good: and God divided the light from the darkness.</p> <p id="regular[]" name="bibletext" style="float: left; text-align: left; width: 155px; display: block; padding: 0px 2px; font-size: 12px;"><input id="check0_4" name="checkresult_0" onclick="" value="5" type="checkbox"><span style="font-weight: bold; margin: 2px;">5</span>And God called the light Day, and the darkness he called Night. And the evening and the morning were the first day.</p> <p id="regular[]" name="bibletext" style="float: left; text-align: left; width: 155px; display: block; padding: 0px 2px; font-size: 12px;"><input id="check0_5" name="checkresult_0" onclick="" value="6" type="checkbox"><span style="font-weight: bold; margin: 2px;">6</span>And God said, Let there be a firmament in the midst of the waters, and let it divide the waters from the waters.</p> All, So I have the following code. It works great. When I add this: Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> It doesn't work. I need it for some aspects of my CSS to work. The code that works without that is: Code: <html> <script> function resizeAll( ) { var divs = document.getElementsByTagName("div"); for ( var d = 0; d < divs.length; ++d ) { var div = divs[d]; if ( div.className == "fn-area" ) { divid = divs[d].getAttribute("id"); imgid = "Img" + divid; var Div1Width, Div1Height; Div1Width = document.getElementById(divid).offsetWidth; Div1Height = document.getElementById(divid).offsetHeight; document.getElementById(imgid).style.width = Div1Width; document.getElementById(imgid).style.height = Div1Height; } } } </script> <head> </head> <body onLoad="resizeAll()"> <div id="Div1" class="fn-area" style="width:100px;height:100px; border:1px solid black;" onmouseover="document.getElementById('ImgDiv1').style.display='block';" onmouseout="document.getElementById('ImgDiv1').style.display='none';"> <img id="ImgDiv1" src="fnclientlib/styles/artwork/creep_stamp5.gif" style="display:none"/> </div> <div id="Div2" class="fn-area" style="width:300px;height:300px; border:1px solid black;" onmouseover="document.getElementById('ImgDiv2').style.display='block';" onmouseout="document.getElementById('ImgDiv2').style.display='none';"> <img id="ImgDiv2" src="fnclientlib/styles/artwork/creep_stamp5.gif" style="display:none"/> </div> </body </html> need to make "left click" act as "middle click" -------------------------------------------------------------------------------- I need to make "left click" act as "middle click" for a web site ....thank you in advance for any and all help... [CODE] <script language="javascript"> function Click(4) { if (event.button==0; 1; ) } document.onmousedown </script>> Hello. I am using using some javascript code (I am just getting familiar with javascript). I have a page at http://sample.cnjwebsolutions.com/garb.php I am hoping that there is a way to have my divs slide up on "HOVER", rather than having to actually "click" on the rollover. Can it be done, or would I use a different approach? I would greatly appreciate any help. Sincerely, Buffmin. I have attached my code (Created in Dreamweaver as you will see). Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <title>garb</title> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script> <link rel="stylesheet" type="text/css" href="css/featuredcontentglider.css" /> <script type="text/javascript" src="Scripts/featuredcontentglider.js"> /*********************************************** * Featured Content Glider script- (c) Dynamic Drive DHTML code library (www.dynamicdrive.com) * Visit http://www.dynamicDrive.com for hundreds of DHTML scripts * This notice must stay intact for legal use ***********************************************/ </script> <script type="text/javascript"> featuredcontentglider.init({ gliderid: "canadaprovinces", //ID of main glider container contentclass: "glidecontent", //Shared CSS class name of each glider content togglerid: "p-select", //ID of toggler container remotecontent: "", //Get gliding contents from external file on server? "filename" or "" to disable selected: 0, //Default selected content index (0=1st) persiststate: false, //Remember last content shown within browser session (true/false)? speed: 500, //Glide animation duration (in milliseconds) direction: "downup", //set direction of glide: "updown", "downup", "leftright", or "rightleft" autorotate: false, //Auto rotate contents (true/false)? autorotateconfig: [3000, 2] //if auto rotate enabled, set [milliseconds_btw_rotations, cycles_before_stopping] }) function MM_swapImgRestore() { //v3.0 var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc; } function MM_preloadImages() { //v3.0 var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array(); var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++) if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}} } function MM_findObj(n, d) { //v4.01 var p,i,x; if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) { d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);} if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n]; for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document); if(!x && d.getElementById) x=d.getElementById(n); return x; } function MM_swapImage() { //v3.0 var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3) if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];} } </script> <style type="text/css"> <!-- #man_big_but_wrap{width:940px;overflow:auto; padding-left:20px; margin:auto;} .manifold_lb{width:230px; height:180px; text-align:center; float:left; color:#D5272C;} --> </style></head> <body onload="MM_preloadImages('images/manifolds/button_hdsv_dn2.png')"> <!--------------- Glide Navigation ------> <!--<div id="wrappp"> --> <div id="p-select" class="glidecontenttoggler"> <div id="man_big_but_wrap"> <div class="manifold_lb"> <h2>Div1 </h2> <div align="center"><a href="#" class="toc" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('Image3','','images/manifolds/button_hdsv_dn2.png',1)"><img src="images/manifolds/button_hdsv_up.png" name="Image3" width="220" height="110" border="0" id="Image3" /></a></div> </div> <div class="manifold_lb"> <h2>Div 2</h2> <div align="center"><a href="#" class="toc" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('Image4','','images/manifolds/button_hdsv_dn2.png',1)"><img src="images/manifolds/button_hdsv_up.png" name="Image4" width="220" height="110" border="0" id="Image4" /></a></div> </div> <div class="manifold_lb"> <h2>Div 3</h2> <div align="center"><a href="#" class="toc" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('Image5','','images/manifolds/button_hdsv_dn2.png',1)"><img src="images/manifolds/button_hdsv_up.png" name="Image5" width="220" height="110" border="0" id="Image5" /></a></div> </div> <div class="manifold_lb"> <h2>Last Div</h2> <div align="center"><a href="#" class="toc" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('Image6','','images/manifolds/button_hdsv_dn2.png',1)"><img src="images/manifolds/button_hdsv_up.png" name="Image6" width="220" height="110" border="0" id="Image6" /></a></div> </div> <!-- end of man_big_but_wrap --> </div><!------------------ End of Glide Navigation -------> <!------ Beginning of Glide Divs --------------> <div id="canadaprovinces" class="glidecontentwrapper"> <!--------------------------------------------------------------------------> <!---------------- Glide div 1--------------------> <div class="glidecontent" align="justify"> <img src="images/wood/wood_stove_frame.jpg" style="float: right; padding: 35px"/> <p></p> <h4><em>Div 1</em><br/> </h4> <p></p> <p style="line-height:1.7em;"> Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged.<p></p> **** It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum. </p> </div> <!------------------Next Glide div ------------------> <div class="glidecontent" align="justify"> <img src="images/wood/wood_insert.jpg" style="float: right; padding: 35px"/> <p></p> <h4><em>Div 2</em><br/> </h4> <p></p> <p style="line-height:1.7em;"> Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged.<p></p> **** It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum. </p> </div> <!------------------Next Glide div ------------------> <div class="glidecontent" align="justify"> <img src="images/wood/wood_fire.jpg" style="float: right; padding: 35px"/> <p></p> <h4><em>Div 3</em><br/> </h4> <p></p> <p style="line-height:1.7em;"> Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged.<p></p> **** It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum. </p> </div> <!------------------Next Glide div ------------------> <div class="glidecontent" align="justify"> <img src="images/wood/why_wood.jpg" style="float: right; padding: 35px"/> <p></p> <h4><em>Last Div</em><br/> </h4> <p></p> <p style="line-height:1.7em;"> Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged.<p></p> **** It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum. </p> </div> </div><!-- End of canadaprovinces div ------------> <!------------------------------------------------------------------> </body> </html> |