JavaScript - Assigning Dom Element Actions Inside An Object
Here's my object constuctor:
Code: function suggest_object(result_id) { this.in_result_div = false; this.search_element = document.getElementById(result_id); } And the execution code: Code: var suggest = new suggest_object(result_id); document.getElementById(result_id).onmouseover = function(){suggest.in_result_div = true;} It works as is, but i'd really like to be able to set the onmouseover inside of the object. Something like Code: function suggest_object(result_id) { this.in_result_div = false; this.search_element = document.getElementById(result_id); this.input_element.onmouseover = function() { this.in_result_div = true; } } So how can I get the 'this' inside the onmouseover function to refer to the object? Similar Tutorialsfunction get_price() { var the_price=1000; if (this.speed=="500MGz") the_price+=200; else the_price+=100; if (this.hdspace=="15GB") the_price+=50; else the_price+=25; if (this.ram=="128MB") the_price+=150; else the_price+=75; return the_price; } function computer(speed,hdspace,ram) { this.speed=speed; this.hdspace=hdspace; this.ram=ram; this.price=get_price; } var work_computer=new computer("2GHz","80GB","1GB"); var home_computer=new computer("1.5GHz","40GB","512MB"); var laptop_computer=new computer("1GHz","20GB","256MB"); var work_computer_price=work_computer.price(); var home_computer_price=home_computer.price(); var laptop_computer=laptop_computer.price(); ___________________________________________________ In the above code, the line I'm having trouble with is marked red. Why is it that when I call the method using ... this.price = get_price; It works fine. But if I assign the object this.price with like this... this.price = get_price(); I get an error? Isn't get_price() a function? So shouldn't the parenthesis be included when the method is called? Why are we suppose to leave out the parenthesis?! I'm confused. Thanks! Hi, I'm relativly new to JS and brand new to the forum so you might need to dumb down your replys for my slightly lacking knowledge. That being said I do have a very solid grasp of html, css and am getting there with JS and its various frameworks. I'm integrating wordpress into an existing site for a friend and currently have the main blog page appear in a DIV. This is the best way to integrate in this case due to many reasons mostly of way the site is constructed. Code: <div class="scroll-pane" id="scrollbox"> WORDPRESS BLOG </div> My issue is that links within that DIV, in the blog, when clicked redirect the page. The simple answer to this would be to have them just open in a new page, which I can easily do with the below code. Code: function Init() { // Grab the appropriate div theDiv = document.getElementById('scrollbox'); // Grab all of the links inside the div links = theDiv.getElementsByTagName('a'); // Loop through those links and attach the target attribute for (var i=0, len=links.length; i < len; i++) { // the _blank will make the link open in new window links[i].setAttribute('target', '_blank'); } } window.onload = Init; But what I'd rather it do is have any link clicked inside the DIV to reload in that same DIV, similar to an iframe, but obviously without using an iframe, due to it's compatibility issues. Is this possible by editing the above code? If not what do I need? Thanks in advance for any help! Hi, every time I try and alert: [ { number:0, secondnumber:0 }, { number:2, secondnumber:1 }, { number:1, secondnumber:2 } ] it just shows [object object], [object object], [object object]. Why is this and what can I do to make the record be shown as it is above in an alert? Thanks. Hello. Is there any way to get the variable name of an object from inside the object? E.g. PHP Code: function Bla(){ this.write = function(){ document.write(<objectname>); } } obj1 = new Bla(); obj1.write(); //Outputs obj1 Here is my script: PHP Code: function myTimer(seconds, obj){ this.seconds = seconds; this.obj = obj; this.startTimer = function(){ if(this.seconds>0){ this.seconds--; this.obj.innerHTML = this.seconds; this.timer = setTimeout("Timer.start()",1000); } } } Timer = new Timer(10, obj); Timer.startTimer(); Now the problem is that the variable that contains the object must be named "Timer". This way I cannot create new timer objects with different variable names I have tried: this.timer = setTimeout("this.start()",1000); but it doesn't work. That's why it would be good to detect the variable name and instead use something like this: this.timer = setTimeout(varname+".start()",1000); I would rather not have to pass the variable name through a parameter like this: Timer1 = new Timer(10, obj, "Timer1"); Thanks in advance. Hi guys, I have a <div> tag that is getting updated by calling a php script. Inside of the div's innerHTML, there is a <select> tag. I need to be able to change the div whenever a user changes the select tag. How can I do this? I've been trying to get the select tag, but it doesn't seem to evaluate right. Ex: (note, the select's name is "courseselect") Code: var thediv = document.getElementById("mydiv"); var selectMenu = thediv.getElementsByTagName("select"); var selector; for (var i = 0; i < selectMenu.length; i++) { var currAtt = selectMenu[i].getAttribute("name"); if (currAtt == "selectcourse") { selector = selectMenu[i]; } } selector.onChange = function() { alert("something has changed!"); } Any help is appreciated. Thanks! Hi I have this page below which I run locally that is created dynamically: I need a piece of javascript to focus on the captcha as shown in the image inside the green box. At this minute I have this which doesn't work all that great for some reason but it gets it to the general area... Code: if (( document.URL.indexOf("cast_skills") != -1 ) || ( document.URL.indexOf("security_prompt") != -1 ) || ( document.URL.indexOf("joinraid") != -1 )){ if ( document.forms.length > 0 ) { document.forms[0].elements[1].focus(); } } As I said this does the job to some extent however it does not leave the focus in a perfect position so that the captcha is readable and the text box visible to type in, as illustrated in the red box in the above image. Help with this would be great. Many thanks, David. I have created this svg color picker : Edit fiddle - JSFiddle I want that each color can be clicked and if each of them clicked, it will rotate the selected image to the top while the rest of the color will be moved accordingly clockwise (like a wheel). I have something that's called with AJAX when the user enters some text (http://askvoke.com). What I want is to execute some javascript within this "frame". If the frame calls something, with say
Code: <script type=\"text/javascript\"> document.write('h'); </script> in it, then "h" doesn't appear, and neither does anything besides what would normally be shown if I didn't add that. Anyone have a solution? Hello. I have a youtube video that autoplays everytime one opens the webpage containing the video. The only extra parameter that causes the video to autoplay is having the following added at the end of the embed src link: "&autoplay=1" If that is not present or if a zero is present in place of the 1, the video does not autoplay. I would like the video to play only once per session. If one is visiting the webpage a second time, the parameter above should not be present or the 1 should be a zero. I am modifying attempting to modify this code: http://www.javascriptkit.com/script/...2/postit.shtml and I am able to get differnt urls to print on screen depending if it's a first visit or not. Problem 1: I cannot however get this to work in Google Chrome. Problem 2: When I attempt to get the url to be printed inside the embed src [/B]link, which is inside the object tag, the javascript either gets printed or that portion is ignored. I don't know if this is because of the quotations and the way I am handling them or if because javascript cannot be inserted inside an object tag. Here is the code: Code: <html> <body> <br><br> <script type="text/javascript"> //Post-it only once per browser session? (0=no, 1=yes) //Specifying 0 will cause postit to display every time page is loaded var once_per_browser=1 ///No need to edit beyond here/// /* var ns4=document.layers var ie4=document.all var ns6=document.getElementById&&!document.all if (ns4) crossobj=document.layers.postit else if (ie4||ns6) crossobj=ns6? document.getElementById("postit") : document.all.postit function closeit(){ if (ie4||ns6) crossobj.style.visibility="hidden" else if (ns4) crossobj.visibility="hide" } */ var url = "\"http://www.youtube.com/blah/version=3&hl=en_US&fs=1\""; function get_cookie(Name) { var search = Name + "=" var returnvalue = ""; if (document.cookie.length > 0) { offset = document.cookie.indexOf(search) if (offset != -1) { // if cookie exists offset += search.length // set index of beginning of value end = document.cookie.indexOf(";", offset); // set index of end of cookie value if (end == -1) end = document.cookie.length; returnvalue=unescape(document.cookie.substring(offset, end)) } } return returnvalue; } function showornot(){ if (get_cookie('postdisplay')==''){ showit() document.cookie="postdisplay=yes" } } function showit(){ url = "\"http://www.youtube.com/blah/version=3&hl=en_US&fs=1&autoplay=1\""; /*if (ie4||ns6) crossobj.style.visibility="visible" else if (ns4) crossobj.visibility="show" */ } if (once_per_browser) showornot() else showit() </script> <b>Outside the Object Tag:</b> <br> <script type="text/javascript">document.write(url);</script> <br><br> <b>In the Object Tag</b> <br><br> <object width="570" height="250"><param name="movie" value="http://www.youtube.com/blah?version=3&hl=en_US&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src=<script type="text/javascript">document.write(url);</script> type="application/x-shockwave-flash" width="570" height="250" allowscriptaccess="always" allowfullscreen="true"></embed></object> </body> </html> The bit of code in bold in the code below is giving me this error in IE: Error: Code: Webpage error details User Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; Trident/4.0; Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.5.30729; Tablet PC 2.0; InfoPath.2; OfficeLiveConnector.1.4; .NET CLR 3.0.30729; OfficeLivePatch.1.3; MSN OptimizedIE8;ENGB) Timestamp: Tue, 16 Mar 2010 15:07:11 UTC Message: HTML Parsing Error: Unable to modify the parent container element before the child element is closed (KB927917) Line: 0 Char: 0 Code: 0 URI: http://www.mateinastate.co.uk/users/mateinastate Code: Code: if(document.getElementById('msn1').innerHTML=="") { document.getElementById('msn1').style.display='none'; } if(document.getElementById('yahoo1').innerHTML=="") { document.getElementById('yahoo1').style.display='none'; } if(document.getElementById('skype1').innerHTML=="") { document.getElementById('skype1').style.display='none'; } if(document.getElementById('facebook1').innerHTML.toLowerCase().substr(0,18)=='<a href="http://">') { document.getElementById('facebook1').style.display='none'; } else if(document.getElementById('facebook1').innerHTML.toLowerCase().substr(0,11)=='<a href="">') { document.getElementById('facebook1').style.display='none'; } else { document.getElementById('fbook-add').innerHTML='Facebook Profile'; } What it's saying isn't actually true (I don't think)... this is how the section is laid out: Code: <div id="submenu1" class="anylinkcss"> <ul> <li class="contact-pm"><a href="/index.php?do=pm&act=new&to=$RateViewProfileUserName$&returnurl=$ReturnURL$">PM me</a></li> <li class="contact-email"><a href="/index.php?do=email&id=$RateViewProfileUserId$">E-mail me</a></li> <li class="contact-msn" id="msn1">$RateViewProfileUser-profile_msn$</li> <li class="contact-yahoo" id="yahoo1">$RateViewProfileUser-profile_yahoo$</li> <li class="contact-skype" id="skype1">$RateViewProfileUser-profile_skype$</li> <li class="contact-facebook" id="facebook1"><a href="$RateViewProfileUser-profile_facebook$"><span id="fbook-add"></span></a></li> </ul> </div> <script type="text/javascript" src="/html_1/js/contact-information.js"></script> Does anyone know why this might error in just IE? Hi all, Trying to something i guess is pretty basic but i cant seem to get it working. I have a page with an iframe name="grid" and on that page i am also running a mootools script which toggles a pannel. The javascript for the pannel is: Code: <script type="text/javascript"> window.addEvent('domready', function(){ var mySlide = new Fx.Slide('top-panel'); $('toggle').addEvent('click', function(e){ e = new Event(e); mySlide.toggle(); e.stop(); }); }); </script> so this link opens the pannel Code: <a href="#" id="toggle">Show Panel</a> However, i want to make a it so that one link can both call a page in the iframe AND toggle the pannel. I tried: Code: <a href="page_to_call.htm" target="grid" id="toggle">Show panel and call page in iframe</a> but no joy. I want more than one link to be able to do this (calling different pages to the iframe and each one toggling the pannel) Can anyone help? Thanks loads in advance for any reply. Hello: I am a newbie to learning Javascript. I have some problems with a file. The goal of the file is that when it loads in a browser, the 1st image is displayed in the top left (image 7441805.gif), along with the following three titles to the right of the image, as listed below: Java Demystified OOP Demystified Data Structures Demystified When you place the mouse over "Java Demystified," the 7441805.gif image should still appear (which it does)), and a new window should pop-up and stay on the screen displaying "10% Discount for Java Demystified" until the user decides to do away with the new window by clicking on the "X". The new window does appear for about less than a second , and then goes away (actually it continuously flashes on and off very quickly), which is not what I want. When you place the mouse over "OOP Demystified," the 0072253630.jpg image should appear (which it does), and a new window should pop-up and stay on the screen displaying "20% Discount for OOP Demystified" until the user decides to do away with the new window by clicking on the "X". The new window does appear for about less than a second , and then goes away (actually it continuously flashes on and off very quickly), which is not what I want. When you place the mouse over "Data Structures Demystified," the 7417436.gif image should appear (which it does), and a new window should pop-up and stay on the screen displaying "15% Discount for Data Structures Demystified" until the user decides to do away with the new window by clicking on the "X". The new window does appear for about less than a second , and then goes away (actually it continuously flashes on and off very quickly), which is not what I want. All of the files are loaded on my laptop, which is using Vista, is 32bit, has the IE9 browser installed, and pop-ups are disabled. When I try to use Mozilla (version 6.0), I am unable to disable the pop-ups, and therefore can not even get any new windows to open. I would appreciate your help. The html file is below: [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" lang="en" xml:lang="en"> <head> <title>Open Window</title> <meta http-equiv="Content-type" content="text/html; charset=iso-8859-1" /> <meta http-equiv="Content-Language" content="en-us" /> <meta name="description" content="XYZ" /> <meta name="keywords" content="XYZ" /> <!-- the absolute pathname of this file is: --> <!-- C:\MISCSUP2_10_17_8\MISCSUP2\Javascript_Demystified_Download_Working\ --> <!-- Ch_12_Page241.html --> <!-- this file was created on Wednesday, 8/24/11: --> <!-- this file was updated on Wednesday, 8/24/11: --> <script language="Javascript" type="text/javascript"> <!-- function OpenNewWindow(book) { if (book== 1) { document.cover.src='7441805.gif' MyWindow = window.open('', 'myAdWin', 'titlebar="0" status="0", toolbar="0", location="0", menubar="0", directories="0", resizable="0", height="50", width="150",left="500",top="400"') MyWindow.document.write('10% Discount for Java Demystified!') } if (book== 2) { document.cover.src='0072253630.jpg' MyWindow = window.open('', 'myAdWin', 'titlebar="0" status="0", toolbar="0", location="0", menubar="0", directories="0", resizable="0", height="50", width="150",left="500",top="500"') MyWindow.document.write('20% Discount for OOP Demystified!') } if (book== 3) { document.cover.src='7417436.gif' MyWindow = window.open('', 'myAdWin', 'titlebar="0" status="0", toolbar="0", location="0", menubar="0", directories="0", resizable="0", height="50", width="150",left="500",top="600"') MyWindow.document.write("15% Discount for Data Structures Demystified!") } } --> </script> </head> <body> <table width="100%" border="0"> <tbody> <tr valign="top"> <td width="50"> <a> <img height="92" src="7441805.gif" width="70" border="0" name="cover"> </a> </td> <td> <img height="1" src="" width="10"> </td> <td> <a onmouseover="OpenNewWindow(1)" onmouseout="MyWindow.close()"> <b><u>Java Demystified </u></b> </a> <br> <a onmouseover="OpenNewWindow(2)" onmouseout="MyWindow.close()"> <b><u>OOP Demystified</u></b> </a> <br> <a onmouseover="OpenNewWindow(3)" onmouseout="MyWindow.close()"> <b><u>Data Structures Demystified</u></b> </a> </td> </tr> </tbody> </table> </body> </html>[ICODE] Hey All, I have the following function - where I can get one of the conditions to work, but not both together. Here's the code: Code: function test_function() { $('#form_field_name').focus(); window.location = window.location + "#form_field_name"; } Basically when clicking an error link, I want to focus onto the form field, and then move to the anchor itself on the page. One of these will work at a time, but not both and I'm not sure why. Any suggestions would be appreciated. Thanks. I have a javascript code to let people subscribe to our newsletter. I would like to get a mail each time a person get subscribed to our newsletter. The code to let people subscribed to our newsletter is: [I] <!-- newsletter subscribe below here --> <script language="Javascript" type="text/javascript"> var fieldstocheck = new Array(); fieldnames = new Array(); function checkform() { for (i=0;i<fieldstocheck.length;i++) { if (eval("document.subscribeform.elements['"+fieldstocheck[i]+"'].value") == "") { alert("Please enter your "+fieldnames[i]); eval("document.subscribeform.elements['"+fieldstocheck+"'].focus()"); return false; } } return true; } function addFieldToCheck(value,name) { fieldstocheck[fieldstocheck.length] = value; fieldnames[fieldnames.length] = name; } </script> <form action="http://www.investinginmongolia.com/phplist/?p=subscribe&id=2" method="post" name="subscribeform"> <p class="linkleft12">Our Newsletter:</p> <p class="linkleft12">Email: <input name="email" style="width: 105px" type="text" value="" /> <script language="Javascript" type="text/javascript">addFieldToCheck("email","Email Address");</script> <input name="list[2]" type="hidden" value="signup" /></p> <p class="linkleft12"> <input name="subscribe" onclick="return checkform();" type="submit" value="Subscribe" /></p> </form> <!-- newsletter subscribe ends here --> I also would like that an e-mail is send automatically to info@yurt-ger-yourte.com through http://www.yurt-ger-yourte.com/cgi-sys/FormMail.cgi Thanks for your help. Bernard Hi there! I've been searching for threads to solve my problem but I don't have the knowledge necessary to figure it out (you know, graphic designers....) so your help will be very appreciated!!! Here's the problem : I have a div named "cat" that I want to hide with a Javascript:animatedcollapse (slideup) action. The action is linked externally on another page. This is the line/link that hides it : <a href="javascript:animatedcollapse.hide('cat')">Hide the div<br/> It works fine. But, I want this action to happen at the same time that you press another link (that other link opens a page in an iframe). This is the iframe link : <p><a href="page.html" target="iframe">Open link in iframe</a></p> Both links work fine. But i want to merge the two together. How? Thanks in advance! I am very new to javascript and cannot find any info anywhere regarding the following problem: On my website I have around 100 pages containing an action form. Occasionally it is necessary to cancel the action throughout the 100 pages which is very time-consuming. Then the action has to be reinstated once again for all the 100+ pages. I thought the solution would be to use javascript to change the action from a .js file which would mean only one page, the .js file, would require alteration: The action that appears on all 100+ pages several times that I am trying to change or stop happening by overwriting the "form action": <form action="http://www.changenamecart.com/" method="post"> <input type="hidden" name="userid" value="1234567"> <input type="hidden" name="return" value="http://www.thehomepage.co.uk/index.htm"> <input type="image" src="http://www.changenamecart.com/images/pic.gif"> </form> My efforts to date a The change .js file: function change() { var myChange = form action; if(myChange == form action){ document.write("form xction"); } } The html file in the header: <script src="change.js" type="text/javascript"></script> I am afraid that my knowledge of programming is very small and I would welcome any help to solve this problem. I can't get any info from Firebug except that one line, uncaught exception [object Object]. The code fully worked, then I needed to make it dynamically create Sortables from the scriptaculous library based on how many X were in a table in my database, which I've done, and I'm thinking it may be a simple slight parse error of some type, I'm not too good with Javascript, because now my script barely works. I've double checked the script's source code, the PHP variables are exactly what they should be. Code: print<<<HERE Sortable.create('sortlist$box', { tag: 'img', overlap:'horizontal',constraint:false, containment: $list, dropOnEmpty: true, onChange: function(item) { var list = Sortable.options(item).element; if(changeEffect) changeEffect.cancel(); changeEffect = new Effect.Highlight('changeNotification', {restoreColor:"transparent" }); }, onDrop: function(item) { var thing=Sortable.options(item).element.identify(); var anchors = document.getElementById(thing).childNodes.length-2; if(anchors > 20){ alert('This box had 20 creatures in it already, your last action has not been saved.'); window.location.reload(); } else{ new Ajax.Request("saveImageOrder.php", { method: "post", parameters: { data: Sortable.serialize("sortlist$box") } }); } } }); HERE; $box++; } ?> }); </script> if you solve this I'll send ya $10 via paypal I created a method for displaying an object's properties: Code: renderfunction = false; function showProperty (object, property) { document.write ('<td class="type">' + (typeof object[property]) + '</td>' + '<td class="name">' + property + '</td>'); document.writeln('<td class="value">' + ( (typeof object[property] != 'function') ? object[property] :( (property != 'showProperties') ? ( renderfunction ? object[property]() : ('<span class="self">NOT RENDERED</span>') ) : ('<span class="self">THIS</span>') ) ) + '</td>'); document.writeln('<td class="hasOwnProperty" >' + ( object.hasOwnProperty(property) ? "Local" : "Inherited" ) + '</td>'); if (typeof object[property] == 'function') { document.writeln ('<td class="function">' + object[property] + '</td>'); } else { document.writeln ('<td class="function"> </td>'); } } As long as renderfunction = false, the object is fine coming out of this function. However, if I change renderfunction to true, all my properties become undefined. Why isn't this working as I expect it to? How should I fix it? Thanks in advance, -Brian. Hello everyone, Here's the scenario I wish to plan out. I have an index.htm page ready. I want to be able to put in javascript code into the HTML coding that will write the ip address of the actual server that is hosting the website into a hidden text box. Then I want to insert this ip address into a hyperlink in the original index.htm to link to another html page (this will be a SSL secure page instead i.e. https://<ip address>). Also vice versa. (With SSL index.htm page have code that writes ip into hidden text box then hyperlink to the original http index page) thanks. Hope you follow me I am working with the google blogger API, and I am having an issue updating my global variable Response. I thought I understood how global variables worked, so I don't know if there is something different about the blogger API or if I'm making a dumb mistake. Code: <SCRIPT TYPE="text/javascript" src="http://www.google.com/jsapi"></ script> <script> google.load("gdata","1.x", {packages: ["blogger"]}); google.setOnLoadCallback(getMyBlogFeed); blogID = "1601946089552390859"; var feedUri = "http://www.blogger.com/feeds/"+blogID+"/posts/full?alt=json"; var Response = ""; function getMyBlogFeed(){ var myBlog = new google.gdata.blogger.BloggerService('GoogleInc-jsguide-1.0'); myBlog.getBlogPostFeed(feedUri, handleBlogFeed, handleError); } function handleBlogFeed(myResultsFeedRoot) { Response = myResultsFeedRoot.feed.entry[0].content.$t; } function handleError(e) { alert("There was an error in getBlogPostFeed"); alert(e.caue ? e.cause.statusText : e.message); } alert(Response); </SCRIPT> Here's what I think SHOULD happen: Response is initialized as a global variable with a value of "" setOnLoadCallback calls getMyBlogFeed which creates a blog object, then calls getBlogPostFeed which calls handleBlogFeed. handleBlogFeed stores a new string to global variable Response an alert pops up with the value of Response (as given by handleBlogFeed) What actually happens is that the alert pops up with the original value of Response. I know that I can issue the alert inside handleBlogFeed, but that isn't the issue. My issue is that I'd like to use Response in other functions, but it isn't being updated as a global variable. What am I doing wrong that Response isn't updating? On a related note, is there a way to return a variable from my handleBlogFeed function? How would I do that? -- I can't seem to figure it out. Thanks! P.S. I recognize that the best place to ask this is the blogger developer group. I've already posted this there, and no one has responded yet. |