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JavaScript - Newbie, Back Space Function
Similar Tutorialsoverview: from my javascript, i call a function in the php block, that function successfully retrieves a value from the database, but when i pass that retrieved value back to the calling function....all is lost somehow. when i test this code by itself, it works fine and gets the correct number. <?php mysql_select_db($database_connFtH, $connFtH); $result = mysql_query("SELECT status_index FROM cpqc_status ORDER BY row_id DESC"); $row_result = mysql_fetch_assoc($result); $index = $row_result['status_index']; echo $row_result['status_index']; echo $index; echo "the value of index is ".$index; ?> however, when i set this same code up as a function to be called upon globally, and to return the value of $index, it all just seems to "not work". <?php function runStatus() { mysql_select_db($database_connFtH, $connFtH); $result = mysql_query("SELECT status_index FROM cpqc_status ORDER BY row_id DESC"); $row_result = mysql_fetch_assoc($result); $index = $row_result['status_index']; return ($index); } //end function runStatus() ?> the calling function, with an alert box to check if the value of $index was passed down accurately <script type="text/javascript"> var x = runStatus(); alert(x); </script> all i want to do is call a server-script function that deals with the database and gets me a value out of the database, and pass that value back to the calling function. can't figure out what is wrong. the "return($index)" should send back the value of $index. the call to that function should receive back a value and assign it to "x". and the alert(x) should spit it out with no problem. but......something is wrong and it won't work. any ideas what is wrong? it is my understanding that a function inside the php determants can be called upon from anywhere and that function can return a value.(?) argh!! i think i know why Einstein's hair was always so messy!! thanks, Paul Williams weather today in Kalispell, MT: 7 deg this morning, got a little snow last night, only about 6 or 8 inches, not much. maybe more later. Sorry to ask what surely must be a newbie type question, but any help would be gratefully appreciated. The following script does not display the first item listed in the option menu and I can't for the life of me figure out why not. Code: function goThere(ctrlName, ctrlFrame, ctrlTitle) {
var oDDL = window.document.getElementById(ctrlName);
//var oTitle = window.document.getElementById(ctrlTitle);
//var sTitle = oDDL[oDDL.selectedIndex].innerText || oDDL[oDDL.selectedIndex].textContent;
//oTitle.textContent = sTitle;
//oTitle.innerText = sTitle;
var sURL = oDDL[oDDL.selectedIndex].value;
window.document.getElementById(ctrlFrame).src = sURL;
window.document.getElementById('savePDF').href = sURL;
;
}
When the user first comes to the page, it should display "Kicker Sept10.pdf", instead it shows "Kicker Oct8.pdf" (except with firefox, then the initial display is black). Once the user clicks on the first item (Kicker Sept 10.pdf) the display is correct. Code: <select id="KickerSel" name="KickerSel" title="KickerEditions" onchange="goThere('KickerSel', 'KickerFrame', 'frameTitle')">
<option value="KickerEditions/Kicker Sept10.pdf">September 10th Edition</option>
<option value="KickerEditions/Kicker Sept24.pdf">September 24th Edition</option>
<option value="KickerEditions/Kicker Oct8.pdf">October 8th Edition</option>
<option value="KickerEditions/Kicker Oct22.pdf">October 22 Edition</option>
<option value="Kicker_Submit.htm">Guidelines For Submitting Articles</option>
</select>
<a id="savePDF" href="Kicker_page.htm" target="_blank" >Save</a>
<!--<br />
<h1 id="frameTitle" >The Kicker</h1>-->
<iframe id="KickerFrame" src="KickerEditions/Kicker 2011_10711.pdf" title="KickerEditions/Kicker 2011_10711.pdf" width="800" height="1034" frameborder="0" scrolling="no"></iframe></div>
<br />
Please let me know if more explanation is needed. Thanks robkir I found a simple script, and I'm trying to customize it just a hair to accept the ID, and I'm doing something wrong. Evidently, I'm completely useless at JS Code: There is <span id="id1234" style="visibility: hidden">NOT </span>hidden content here.
<script type="text/javascript">
function showIt(uniqueID) {
document.getElementById(uniqueID).style.visibility = "visible";
}
setTimeout("showIt(id1234)", 2000); // after 2 sec's
</script>
I want to be able to pass the ID in when I call the function. How would do that? I cannot get an address entered on a form to validate unless I leave out the space between the number and the street name. The second line of the function shows the characters that it will accept. Every way I tried to add a space to that list doesn't work. function isAlphanumeric(elem, helperMsg){ var alphaExp = /^[0-9a-zA-Z]+$/; if(elem.value.match(alphaExp)){ return true; }else{ alert(helperMsg); elem.focus(); return false; } } (This is from a tutorial I'm studying to learn how to do validation. It seems strange that the folks who put this thing together don't know there's a space between the house number and the street name. Or does that only apply to my street?) Any ideas, J Hi, New to JS. Have ordered some new books, but need to get somethings going in the mean time. What I wanted to do is to link to a new page having a date range input in the form of 6 text boxes, 2 sets of mm-dd-yy, from and to, where the upon loading the page box 1 of the from would auto focus and then auto tab and then post where php could take over on the server side. Setting up the form and the lay out, no problem. Auto focusing went just like expected using the following code, included because on the next step everything fell apart. [/CODE] <script type="text/javascript" > window.onload=function() { document.getElementById("input1").focus(); } </script> [/CODE] So then the wheels came off and in response, began to simplify what was trying to be done to find where the issues were. As far as I can get working is: Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<script type="text/javascript" >
window.onload=function() {
document.getElementById("input1").focus();
}
</script>
<script type="text/javascript" >
function myFunc() {
alert("is this working");
}
</script>
</head>
<body>
<input id="input1" name="input1" type="text" onkeyup="myFunc()" maxlength="2" value="type a No." />
</body>
</html>
First issue with this: When I first get to the page everything is just as ordered. The focus is on the text box and the default value is "type a No." When I press a key onkeyup, I bring up the alert box with "is this working" in it. But when I refresh the page with the refresh button, after clicking the "ok" on the alert box, the character that was typed in is still displayed. If I use the link to the page, or the URL from the address bar, then the page reloads properly with the default value, "type a No". Question 1: How do you get the default textbox value using the refresh button as apposed to reloading the page using a link or from the address bar? Using Firefox 8.0 Second and more important at the moment: If I change the script to pass an argument to the function the script crashes. It does not pull up an alert box and freezes. My guess is that I'm doing something wrong on a concept level. NOTE: changed the default value of the text box to " ". Looked like to me there was an issue with the size specification and the default string length as you could only enter in a key stroke by highlighting the text and replacing it Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<script type="text/javascript" >
window.onload=function() {
document.getElementById("input1").focus();
}
</script>
<script type="text/javascript" >
function myFunc(awe) {
alert(awe);
}
</script>
</head>
<body>
<input id="input1" name="input1" type="text" onkeyup="myFunc("123")" maxlength="2" value="" />
</body>
</html>
Question 2: can someone straighten me out with this? i have the following code which i am trying to insert a 'back button' into to go back to the previous page. i can only seem to get the button to appear either at the very top or very bottom of the page, does anyone know how i can specify the location? this script is generated from easypano tourweaver - Code: <html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Virtual Tour Created By CAPITA SYMONDS</title>
</head>
<body leftMargin="0" topMargin="0" rightMargin="0" bottomMargin="0">
<script type="text/javascript" src="swfobject.js"></script>
<div id="flashcontent">
To view virtual tour properly, Flash Player 9.0.28 or later version is needed.
Please download the latest version of <a href="http://www.adobe.com/go/getflashplayer" target="_blank">Flash Player</a> and install it on your computer.
</div>
<script type="text/javascript">
// <![CDATA[
var so = new SWFObject("twviewer.swf", "sotester", "1024", "768", "9.0.0", "#FFFFFF");
so.addParam("allowNetworking", "all");
so.addParam("allowScriptAccess", "always");
so.addParam("allowFullScreen", "true");
so.addParam("scale", "noscale");
//<!-%% Share Mode %%->
so.addVariable("lwImg", "resources/2_area_multipix_preloading image file.jpg");
so.addVariable("lwBgColor", "255,255,255,255");
so.addVariable("lwBarBgColor", "255,186,186,186");
so.addVariable("lwBarColor", "255,153,0,0");
so.addVariable("lwBarBounds", "-512,-384,1024,768");
so.addVariable("lwlocation", "4");
so.addVariable("lwShowLoadingPercent", "false");
so.addVariable("lwTextColor", "255,0,0,0");
so.addVariable("iniFile", "config_2_Area_Multipix.bin");
so.addVariable("progressType", "1");
so.addVariable("swfFile", "resources/2_area_multipix_1_animation for tourweaver.swf");
so.addVariable("href", location.href);
so.write("flashcontent");
// ]]>
</script>
</body>
</html>
here is the button code - Code: <span onclick="javascript:history.back()" style="text-decoration:underline; color:blue; cursor:hand">Back</span> Not sure how to explain this but...... Using a meta refresh to display a thankyou page for 5 seconds after a form submit, then return to form. If user clicks back to return to main page from form, returns to thankyou page instead, and has to go back to form again, then back to main page. I can have thankyou page return to main page, but would rather return to form. This is what it should do: main page -> form -> thankyou page -> form -> main page This is what it does: main -> form -> thankyou -> form -> thankyou -> form -> main Is there any way to remove thankyou page from history? I am making a simple puzzle game on Android using Phonegap, that is HTML5, CSS3 and JavaScript. When a user fills an answer on a page, if the answer is correct, it will go to another page. However, once the user goes to the next page, he/she CANNOT return back to the previous page. I do not want the user to return back, else he/she will have to fill the answer again to go to the next page, so it's not good. Thank I need a back to top link on the bottom of my page that stays there all the time while people are scrolling.. is this possible? is this close to what i'm looking for? http://javascript.internet.com/page-...ting-link.html i've seen it on some other sites but I can't find any to reference now... I'm totally new to this! thanks for your help! -B Hello there, I'm a 30yr old returning to school and I signed up for a CMIS102 class, thinking it be more explanatory as the syllabus let on. But I was wrong. While I do understand some of what the professor has been teaching us, like modular programming and IfElse statements, I can't wrap my head around things like While Loops. My professor has saddled us with a couple assignments, requiring us to write in pseudocode and I was wondering if anyone could explain what he wants from this assignment or even help me with it, that maybe I can finally have a grasp of it, and will know what I'm doing on the final. ~Tia P.S. I've posted the assignment question below: I need to write a pseudo-codepseudocode for the following question but don't know how: Write a program to read a list of exam scores (in the range 0 to 100) and to output the total number of grades and the number of grades in each letter=grade category. The end input is indicated by a negative score as a sentinel value. (The negative value is used only to end the loop, so do not use it in the calculations. Example: 88 93 55 77 100 -1 (The output would be) Total number of grades = 5 Number of A's =2 Number of B's = 1 Number of C's =1 Number of D's = 0 Number of F's =1 Must prompt user to run again I am not sure if this has been posted before but I need help with this. When a user clicks on the back button I need them to be directed to the previous page and still have their original selections and not the defaults. Here is the rest of code on the back button. At the moment this is not working. <input id=STDBUTSHORT type="button" value="Back" onClick="history.back();">') Thanks in advance. Hello kind folk of codingforums.com! I am pretty new to JS and have been racking my brain all week to find a solution for this. I have a javascript fading slideshow but it has no back or next button. I'm not sure if i need to add another function or go about it a different way. Here is the code if anyone can help. Thanks in advance!!! <script type="text/javascript"> var slidespeed=5800 var slideimages=new Array("my_images/SBDCslide.gif","my_images/americanbuilding.gif","my_images/emerald.gif", "my_images/nautical.gif", "my_images/rent.gif","my_images/allyn.gif","my_images/SBDCslide.gif","my_images/signs.gif","my_images/cobalt.gif","my_images/test.gif","my_images/federal.gif") var slidelinks=new Array("#" ,"american.asp","emerald.asp","nautical.asp") var whichlink=0 var whichimage=0 var imgobj, filtersupport, blenddelay var imageholder=new Array() for (i=0;i<slideimages.length;i++){ //preload images imageholder[i]=new Image() imageholder[i].src=slideimages[i] } function gotoshow(){ window.location=slidelinks[whichlink] } function slideit(){ if (filtersupport) imgobj.filters[0].apply() imgobj.src=imageholder[whichimage].src if (filtersupport) imgobj.filters[0].play() whichlink=whichimage whichimage=(whichimage<slideimages.length-1)? whichimage+1 : 0 setTimeout("slideit()", slidespeed+blenddelay) } window.onload=function(){ imgobj=document.getElementById("slideshow") //access img obj filtersupport=imgobj.filters //check for support for filters blenddelay=(filtersupport)? imgobj.filters[0].duration*1000 : 0 slideit() } </script> Hi, I currently have a <div> with a <p> and have an edit button that when clicked will transform it into a textarea using jQuery's .html(). I also have a cancel button which allows the user to cancel the edit and return the textarea to the previous content, any ideas how I do this? JavaScript Code: // JavaScript Document
jQuery(document).ready(function(e) {
$('#edit_p').click(function(e){
$('#cancel_p').show();
$('#greeting').html("<textarea id='txt_greeting' cols='20'>" + $('#greeting p').text() + "</textarea>");
$(this).hide();
});
$('#cancel_p').click(function(e){
$('#edit_p').show();
$(this).hide();
});
});
HTML Code: <!DOCTYPE HTML> <html> <head> <meta charset="utf-8"> <title>Textarea/Button Change</title> <script type="text/javascript" src="jquery-1.7.js"></script> <script type="text/javascript" src="txt_area_jquery.js"></script> <link rel="stylesheet" type="text/css" href="txt_area_style.css" /> </head> <body> <div id="greeting"><p>Hello, today is a great day!</p></div> <input type="button" name="edit_p" id="edit_p" value="Edit" /> <input type="button" name="cancel_p" id="cancel_p" value="Cancel" /> <?php ?> </body> </html> I need an html page that when visited automatically redirects the browser to return to the previous page it was on. here is the current code I have: Code: <head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Untitled Document</title>
<script type="text/javascript">
function load()
{
history.go(-1)
alert("");
}
</script>
</head>
<body onload="load()">
<input type="button" value="Back" onclick="goBack()" />
</body>
</html>
this works in firefox but in IE you have to press ok in the alert box before it returns. I admit I am a javascript novice. Any suggestions this function seems to be working fine in all browser but of course. I'm still a noob at JavaScript and well things like this just doesn't make sense. when I go to alert this function in IE I get undefined. But other browser gives me a value. What am I doing wrong with this function? Code: function ext() {
var img = document.getElementById('photoSmall');
img = img.src;
if (typeof img == 'string' && img != 'undefined') {
var typeis = img.substr(-4);
if (typeis == '.png' || '.jpg' || '.gif') {
return typeis;
}
}
}
Thanks Jon W Hi, I have the following problem: When I use this script it pops up both if a user tries to close the window and also if he presses the back button. Please tell how to show another window or do another action when the back button is pressed? I know it is possible although a lot of people say it's not. Code: <script type="text/javascript" type="text/javascript">
window.onbeforeunload = confirmExit;
function confirmExit()
{
return "blabla";
}
</script>
Hello there, This seems to be a bit of a sore topic on the forums but at least I think I have good reason for wanting to do it - I've written a script that displays tooltips when your mouse hovers over a link - all this is fine, but when I click on the link and move to another page, then click the back button on the browser to go back, the tooltip for the link I clicked is still visible! It'd be great if there was a way of detecting the button had been pressed so that I can hide it... p.s. I tried onclick = "tooltips.hideToolTip(4); return true;" for the links but no joy... Many thanks Edd I have a dropdown box "select Term" which has options Spring 2011, Summer I 2011, Summer II 2011, Fall 2011. alongwith another dropdown box which is populating from oracle DB. When the select term option changes, the second dropdown values changes( populate from the DB). When I change the option of the first one (i.e. spring 2011 to summer I 2011) I can see the query string canges: https://localhost/term/index.php?frmTerm=201107 and also I can see the second dropdown(populates from DB) changes according to the first selection No problem....BUT the first one is falling back to the default one" select term"as soon as the second list populates.Here is my code and I would really appreciate if you help PHP 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" xml:lang="en"> <head> <SCRIPT language=JavaScript> function reload(form) { var val=form.myTerm.options[form.myTerm.options.selectedIndex].value; self.location='index.php?myTerm=' + val ; } </script> </head> <body> <?php include('conn.php'); ?> <form name = "schd" id="schd" action="drplist.php" method = "post"> <?php $var_term; @$term=$_GET['myTerm']; echo"<td>"; print "<select name='myTerm'onchange=\"reload(this.form)\">\n"; //1st dropdown code $query_term = "select term_code from myterm"; $stid_term = OCIParse($conn, $query_term); OCIExecute($stid_term,OCI_DEFAULT); print "<option value=''>Select Term</option>"; while (OCIFetchInto($stid_term,$row)) { foreach($row as $item) { //print "<option value='$item'>$item</option>"; if($item ==201101) { $var_term = "Spring 2011"; } elseif ($item == 201106){ $var_term = "Summer I 2011"; } elseif($item == 201107) { $var_term="Summer II 2011"; } elseif($item == 201109){ $var_term ="Fall 2011"; } else { echo "noterm"; } }//end foreach print"<option value = '$item'>$var_term</option>"; }//end while print "</select>\n"; OCILogoff($conn); echo " </td> "; print "<select name='frmPrefix'>\n"; //If the term is Summer I if(isset($term) and $term =='201106') { $quer="SELECT DISTINCT SUBJ_CODE||'-'||SUBJ_DESC FROM SUMMERI WHERE TERM_CODE = '".$term."' "; $stid_secdrp1 = OCIParse($conn, $quer); OCIExecute($stid_secdrp1); while(OCIFetchInto($stid_secdrp1,$row)) { foreach($row as $item) { print "<option value='$item'>$item</option>"; }//END OF FOREACH }//END OF WHILE }//end of IF ?> </body> </html> |
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