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JavaScript - Dom Getelementsbytagname Problem
Hello,
I am just starting out learning JavaScript and I have just reach the DOM section of my course. I have a page with 10 <a> tags on it and I have created the following JavaScript to tell me how many I have. Code: <script type="text/javascript">
var myLinks = document.getElementsByTagName("a");
console.log("We have ", myLinks.length ," many links on the page");
</script>
However in the console it reports this: We have 0 many links on the page This is not true as there are 10 links, 9 in the navgation section of the website and 1 in the footer. If someone can tell me what I am doing wrong that would be great. Thanks Similar TutorialsHello CodingForums. I have a script to increase the fontsize on my website.. It works perfectly, but currently it's only targetting my <p> tag and I want it to target my h2 and h3 aswell.. How can I do this? Code: var min=8;
var max=18;
function increaseFontSize() {
var p = document.getElementsByTagName('p');
for(i=0;i<p.length;i++) {
if(p[i].style.fontSize) {
var s = parseInt(p[i].style.fontSize.replace("px",""));
} else {
var s = 12;
}
if(s!=max) {
s += 1;
}
p[i].style.fontSize = s+"px"
}
}
function decreaseFontSize() {
var p = document.getElementsByTagName('p');
for(i=0;i<p.length;i++) {
if(p[i].style.fontSize) {
var s = parseInt(p[i].style.fontSize.replace("px",""));
} else {
var s = 12;
}
if(s!=min) {
s -= 1;
}
p[i].style.fontSize = s+"px"
}
}
today looking through my logs (errors) and one that came up was Code: element.getElementsByTagName is not a function from the source Code:
getByAttribute = function(element, strTagName, strAttributeName, strAttributeValue)
{
var arrElements = (strTagName == "*" && element.all)? element.all : element.getElementsByTagName(strTagName);
Can anyone help me out here? thanks i have this part of code in JS: Code: var receiveReq = getXmlHttpRequestObject();
function getXmlHttpRequestObject()
{
if (window.XMLHttpRequest)
{
return new XMLHttpRequest();
}
}
function getChatText()
{
if (receiveReq.readyState == 4 || receiveReq.readyState == 0)
{
receiveReq.open("GET","getChat_xml.php?chat=1&last=7", true);
receiveReq.onreadystatechange = handleReceiveChat;
receiveReq.send();
}
}
function handleReceiveChat()
{
if (receiveReq.readyState == 4)
{
var chat_div = document.getElementById('div_chat');
var xmldoc = receiveReq.responseXML;
var message_nodes = xmldoc.getElementsByTagName("message");
}
}
then in my getChat_xml.php i have: Code: $xml = '<?//xml version="1.0" ?><root>';
$last = 7;
$sql = "SELECT message_id, user_name, message, date_format(post_time, '%h:%i') as post_time" .
" FROM message WHERE chat_id = " . db_input($_GET['chat']) . " AND message_id = " . $last;
$message_query = db_query($sql);
while($message_array = db_fetch_array($message_query))
{
$xml .= '<message id="' . $message_array['message_id'] . '">';
$xml .= '<user>' . htmlspecialchars($message_array['user_name']) . '</user>';
$xml .= '<text>' . htmlspecialchars($message_array['message']) . '</text>';
$xml .= '<time>' . $message_array['post_time'] . '</time>';
$xml .= '</message>';
}
$xml .= '</root>';
echo $xml;
i get a "cannot cal a method getElementsByTagName of null" ??? i have no idea whats going on, help please? thanks This is a question about a code for a javascript slide show which i think is very important to understand because slide shows are heavily used! This is the html: Quote: <!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=utf-8" /> <script language="javascript" script type="text/javascript" src="slideshow.js"></script> <title>Slideshow exercise</title> </head> <body> <h1> Slideshow exercicse</h1> <img class="slide" src="cityscape.jpg" width="400" height="300"> <img class="slide" src="Creative_design_sailing_leaves_under_blue_sky.jpg" width="400" height="300"> <img class="slide" src="Curiousity.jpg" width="400" height="300"> <img class="slide" src="raindrops-blue-garden-seamless-tile.jpg" width="400" height="300"> <p> Clic on image to view next slide</p> <p> Clic on image to view next slide</p> </body> </html> This is the .js file and my questions: Quote: var numslides=0;currentslide=0; var slides= new Array(); function MakeSlideShow(){ //find all images with the class "slide" imgs= document.getElementsByTagName("img");---------> question 1 for (i=0; i<imgs.length ; i++) { if(imgs[i].className != "slide") continue; slides[numslides]=imgs[i];----------------------------------->question2 //hide all but first image if(numslides==0) {imgs[i].style.display="block";} else{imgs[i].style.display="none";} imgs[i].onclick=NextSlide; numslides++;}//end of loop--------------------------->question3 } //end MakeSlideShow() function NextSlide(){ slides[currentslide].style.display="none";------------------>question4 currentslide++ if(currentslide >= numslides) currentslide=0; slides[currentslide].style.display="block";--------------->question5 } window.onload= MakeSlideShow; question1: does "imgs" automatically become an array here? If so, how can i print out its lenght? This is what i tried and it doesn't work-> var lengthimgs= imgs.length document.write(lengthimgs) question2: What is happening here? Is the imgs[i] array transferring its data into the slides[numslides] array? question3: If slides[numslides] and imgs[i] are interchangeable why can't this line be i++ instead of numslides++ question4: What is happenning to the slides array here? Is currentslide becoming a copy of numslides? question5: What does this do? Where does this line sent the code? Why this? Why hasn't "imgs[i].style.display="block";" already done the job for the display? Thanks (just started JS 2 weeks ago) -- this is also my first time posting here, if my post isnt following the proper template let me know and Ill fix it .. Thanks so much for taking the time to check this out in advance Im trying to make the first ul tag in the each slideMenus[] array index values have a position of left = 0px I keep recieving this error however ____________________________________________________ Error: slideMenus[i].getElementsByTagName("ul").style is undefined Line: 63 ------------------------------------------------------------------ the script in question is in [code]. Could someone tell me if I am just making a syntax error if not ill try redoing the whole thing. window.onload = makeMenus var currentSlide = null var timeID = null leftPos = 0 function makeMenus(){ var slideMenus = new Array() var allElems = document.getElementsByTagName("*") var slideListArr = new Array() for(var i=0 ; i < allElems.length ; i++){ if(allElems[i].className = "slideMenu") slideMenus.push(allElems[i]) } for(var i=0 ; i < slideMenus.length ; i++){ slideMenus[i].onclick = showSlide; Code: slideMenus[i].getElementsByTagName("ul")[0].style.left = "0px";
} document.getElementById("head").onClick = closeSlide document.getElementById("main").onClick = closeSlide } function showSlide(){ var slideList = this.getElementsByTagName("ul")[0] // mess with this if((currentSlide != null) && (currentSlide.id == slideList.id)) {closeSlide()} else{ closeSlide(); var currentSlide = slideList; currentSlide.style.display = "block"; timeID = setInterval('moveSlide()', 1); } } function closeSlide(){ if(currentSlide){ clearInterval(timeID); currentSlide.style.left = "0px" currentSlide.style.display = "none"; var currentSlide = null } } function moveSlide(){ var leftPos = leftPos + 5; if(leftPos <= 220) {currentSlide.style.left = leftPos + "px"} else{ clearInterval(timeID); var leftPos = 0} } Can someone please tell why this is not working in the browser. Here's my code: <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Untitled Document</title> <script type="text/javascript"> var secondaryHeadings = document.getElementsByTagName("h2") alert(secondaryHeadings[0].innerHTML); </script> </head> <body> <div> <h1> Main Headline </h1> <h2> Sub-Headline</h2> </div> </body> </html> Hi pals, I am really tired in this problem of event keyup. I given same in my keyup function like: $(document).ready(function () { alert("GGG"+parseInt(jQuery.browser.version)); //To display test value working $("#find_text").keyup(function(e) { if(e.which == 13) { alert('Enter key was pressed'); //enter Here alert("FFF"+parseInt(jQuery.browser.version)); //Here got Error } }); }); I got Error : jQuery is not defined alert("FFF"+parseInt(jQuery.browser.version)); I use keycode,which , but no help, It's Work nicely in Chrome Browser but not in FF. Please give a Solution reply ASAP, I am really Tired.The code enter the Condition But that jQuery part make error. Thankfully Anes P.A Hi, i can't get my new logo to work in IE, it's working fine in Chrome and FireFox, it must be a JavaScript problem. here it is: http://danishwebart.com/logo/logo.php And the JavaScrip: $(function() { var canvas = $("#c"); var canvasHeight; var canvasWidth; var ctx; var dt = 0.1; var pointCollection; function init() { updateCanvasDimensions(); var g = [new Point(27, 34, 0.0, 1, "#ed9d33"), new Point(26, 38, 0.0, 1, "#d44d61"), new Point(25, 41, 0.0, 1, "#4f7af2"), new Point(22, 44, 0.0, 1, "#ef9a1e"), new Point(18, 46, 0.0, 2, "#4976f3"), new Point(12, 44, 0.0, 2.5, "#269230"), new Point(7, 41, 0.0, 2, "#1f9e2c"), new Point(5, 37, 0.0, 1, "#36b641"), new Point(4, 33, 0.0, 1, "#2e5def"), new Point(4, 29, 0.0, 1, "#d53747"), new Point(5, 25, 0.0, 1, "#eb676f"), new Point(6, 22, 0.0, 1, "#f9b125"), new Point(8, 19, 0.0, 1, "#de3646"), new Point(11, 16, 0.0, 1, "#5f8af8"), new Point(13, 14, 0.0, 1, "#efa11e"), new Point(16, 12, 0.0, 1, "#2e55e2"), new Point(19, 10, 0.0, 1, "#4167e4"), new Point(23, 8, 0.0, 1.5, "#4869e3"), new Point(28, 6, 0.0, 2, "#10a11d"), new Point(33, 5, 0.0, 2, "#cf4055"), new Point(38, 5, 0.0, 2, "#cd4359"), new Point(44, 6, 0.0, 3, "#ca273c"), new Point(51, 8, 0.0, 3, "#2650e1"), new Point(57, 11, 0.0, 3, "#4a7bf9"), new Point(63, 16, 0.0, 3.5, "#f47875"), new Point(68, 23, 0.0, 4, "#f36764"), new Point(71, 31, 0.0, 3.5, "#1d4eeb"), new Point(72, 38, 0.0, 3, "#698bf1"), new Point(72, 44, 0.0, 2.5, "#fac652"), new Point(72, 49, 0.0, 2, "#ee5257"), new Point(71, 54, 0.0, 2, "#5681f5"), new Point(70, 59, 0.0, 2, "#f8c247"), new Point(68, 64, 0.0, 2, "#4577f6"), new Point(65, 68, 0.0, 2, "#f7b326"), new Point(62, 72, 0.0, 2, "#facb5e"), new Point(59, 75, 0.0, 2, "#e02e3d"), new Point(55, 77, 0.0, 2, "#f16d6f"), new Point(53, 78, 0.0, 2.5, "#507bf2"), new Point(47, 79, 0.0, 3, "#5683f7"), new Point(40, 77, 0.0, 3.5, "#3158e2"), new Point(33, 74, 0.0, 3.5, "#f0696c"), new Point(27, 73, 0.0, 2.5, "#3769f6"), new Point(22, 73, 0.0, 2, "#6084ef"), new Point(19, 76, 0.0, 1.5, "#2a5cf4"), new Point(17, 79, 0.0, 1, "#f4716e"), new Point(25, 70, 0.0, 2, "#f8c247"), new Point(29, 67, 0.0, 2, "#ec4147"), new Point(33, 64, 0.0, 2, "#4876f1"), new Point(36, 59, 0.0, 2.5, "#2552ea"), new Point(38, 53, 0.0, 3, "#4779f7"), new Point(38, 46, 0.0, 3.5, "#4b78f1"), new Point(38, 38, 0.0, 3.5, "#4b78f1"), new Point(37, 31, 0.0, 2.5, "#4b78f1"), new Point(38, 25, 0.0, 2, "#4b78f1"), new Point(40, 20, 0.0, 2, "#4b78f1"), new Point(42, 16, 0.0, 1.5, "#4b78f1"), new Point(45, 14, 0.0, 1, "#4b78f1"), new Point(48, 12, 0.0, 1, "#4b78f1"), new Point(59, 82, 0.0, 1, "#ed9d33"), new Point(62, 80, 0.0, 1.5, "#d44d61"), new Point(66, 77, 0.0, 2, "#4f7af2"), new Point(70, 73, 0.0, 2, "#4976f3"), new Point(73, 69, 0.0, 2, "#269230"), new Point(76, 65, 0.0, 2, "#1f9e2c"), new Point(79, 60, 0.0, 2, "#36b641"), new Point(80, 55, 0.0, 1.5, "#2e5def"), new Point(81, 65, 0.0, 2.5, "#eb676f"), new Point(83, 71, 0.0, 3, "#f9b125"), new Point(84, 77, 0.0, 2.5, "#de3646"), new Point(82, 82, 0.0, 2, "#de3646"), new Point(88, 74, 0.0, 1.5, "#efa11e"), new Point(90, 70, 0.0, 1.5, "#2e55e2"), new Point(92, 66, 0.0, 1.5, "#4869e3"), new Point(93, 62, 0.0, 1.5, "#4869e3"), new Point(95, 53, 0.0, 1, "#10a11d"), new Point(95, 57, 0.0, 2, "#cf4055"), new Point(97, 62, 0.0, 2.5, "#cd4359"), new Point(100, 68, 0.0, 3, "#ca273c"), new Point(102, 74, 0.0, 2.5, "#2650e1"), new Point(101, 80, 0.0, 2, "#4a7bf9"), new Point(105, 78, 0.0, 1, "#f36764"), new Point(107, 75, 0.0, 1, "#1d4eeb"), new Point(109, 72, 0.0, 1, "#698bf1"), new Point(110, 69, 0.0, 1, "#fac652"), new Point(111, 66, 0.0, 1, "#ee5257"), new Point(112, 63, 0.0, 1, "#5681f5"), new Point(112, 60, 0.0, 1.5, "#f8c247"), new Point(112, 56, 0.0, 1.5, "#4577f6"), new Point(110, 52, 0.0, 2, "#f7b326"), new Point(107, 48, 0.0, 2.5, "#facb5e"), new Point(102, 45, 0.0, 2.5, "#e02e3d"), new Point(97, 43, 0.0, 2, "#f16d6f"), new Point(110, 83, 0.0, 1, "#507bf2"), new Point(112, 80, 0.0, 1, "#5683f7"), new Point(114, 77, 0.0, 1.5, "#3158e2"), new Point(116, 73, 0.0, 1.5, "#f0696c"), new Point(118, 69, 0.0, 1.5, "#3769f6"), new Point(119, 65, 0.0, 1.5, "#6084ef"), new Point(119, 61, 0.0, 1.5, "#2a5cf4"), new Point(119, 57, 0.0, 1.5, "#f4716e"), new Point(118, 53, 0.0, 1.5, "#f8c247"), new Point(116, 50, 0.0, 1, "#ec4147"), new Point(120, 51, 0.0, 1, "#4876f1"), new Point(123, 53, 0.0, 1, "#2552ea"), new Point(126, 55, 0.0, 1, "#4779f7"), new Point(129, 58, 0.0, 1.5, "#4b78f1"), new Point(132, 61, 0.0, 1.5, "#4b78f1"), new Point(135, 65, 0.0, 1.5, "#4b78f1"), new Point(138, 69, 0.0, 1.5, "#4b78f1"), new Point(140, 73, 0.0, 2, "#4b78f1"), new Point(142, 78, 0.0, 2, "#4b78f1"), new Point(143, 83, 0.0, 2, "#4b78f1"), new Point(121, 70, 0.0, 1, "#4b78f1"), new Point(124, 71, 0.0, 1, "#4b78f1"), new Point(127, 71, 0.0, 1, "#4b78f1"), new Point(130, 71, 0.0, 1.5, "#4b78f1"), new Point(134, 70, 0.0, 1.5, "#4b78f1"), new Point(142, 68, 0.0, 1.5, "#4b78f1"), new Point(146, 68, 0.0, 1, "#4b78f1"), new Point(149, 69, 0.0, 1, "#4b78f1")]; gLength = g.length; for (var i = 0; i < gLength; i++) { g[i].curPos.x = (canvasWidth/2 - 0) + g[i].curPos.x; g[i].curPos.y = (canvasHeight/2 - 0) + g[i].curPos.y; g[i].originalPos.x = (canvasWidth/2 - 0) + g[i].originalPos.x; g[i].originalPos.y = (canvasHeight/2 - 0) + g[i].originalPos.y; }; pointCollection = new PointCollection(); pointCollection.points = g; initEventListeners(); timeout(); }; function initEventListeners() { $(window).bind('resize', updateCanvasDimensions).bind('mousemove', onMove); canvas.get(0).ontouchmove = function(e) { e.preventDefault(); onTouchMove(e); }; canvas.get(0).ontouchstart = function(e) { e.preventDefault(); }; }; function updateCanvasDimensions() { canvas.attr({height: $(window).height(), width: $(window).width()}); canvasWidth = canvas.width(); canvasHeight = canvas.height(); draw(); }; function onMove(e) { if (pointCollection) pointCollection.mousePos.set(e.pageX, e.pageY); }; function onTouchMove(e) { if (pointCollection) pointCollection.mousePos.set(e.targetTouches[0].pageX, e.targetTouches[0].pageY); }; function timeout() { draw(); update(); setTimeout(function() { timeout() }, 30); }; function draw() { var tmpCanvas = canvas.get(0); if (tmpCanvas.getContext == null) { return; }; ctx = tmpCanvas.getContext('2d'); ctx.clearRect(0, 0, canvasWidth, canvasHeight); if (pointCollection) pointCollection.draw(); }; function update() { if (pointCollection) pointCollection.update(); }; function Vector(x, y, z) { this.x = x; this.y = y; this.z = z; this.addX = function(x) { this.x += x; }; this.addY = function(y) { this.y += y; }; this.addZ = function(z) { this.z += z; }; this.set = function(x, y, z) { this.x = x; this.y = y; this.z = z; }; }; function PointCollection() { this.mousePos = new Vector(0, 0); this.points = new Array(); this.newPoint = function(x, y, z) { var point = new Point(x, y, z); this.points.push(point); return point; }; this.update = function() { var pointsLength = this.points.length; for (var i = 0; i < pointsLength; i++) { var point = this.points[i]; if (point == null) continue; var dx = this.mousePos.x - point.curPos.x; var dy = this.mousePos.y - point.curPos.y; var dd = (dx * dx) + (dy * dy); var d = Math.sqrt(dd); if (d < 80) { point.targetPos.x = (this.mousePos.x < point.curPos.x) ? point.curPos.x - dx : point.curPos.x - dx; point.targetPos.y = (this.mousePos.y < point.curPos.y) ? point.curPos.y - dy : point.curPos.y - dy; } else { point.targetPos.x = point.originalPos.x; point.targetPos.y = point.originalPos.y; }; point.update(); }; }; this.draw = function() { var pointsLength = this.points.length; for (var i = 0; i < pointsLength; i++) { var point = this.points[i]; if (point == null) continue; point.draw(); }; }; }; function Point(x, y, z, size, colour) { this.colour = colour; this.curPos = new Vector(x, y, z); this.friction = 0.8; this.originalPos = new Vector(x, y, z); this.radius = size; this.size = size; this.springStrength = 0.1; this.targetPos = new Vector(x, y, z); this.velocity = new Vector(0.0, 0.0, 0.0); this.update = function() { var dx = this.targetPos.x - this.curPos.x; var ax = dx * this.springStrength; this.velocity.x += ax; this.velocity.x *= this.friction; this.curPos.x += this.velocity.x; var dy = this.targetPos.y - this.curPos.y; var ay = dy * this.springStrength; this.velocity.y += ay; this.velocity.y *= this.friction; this.curPos.y += this.velocity.y; var dox = this.originalPos.x - this.curPos.x; var doy = this.originalPos.y - this.curPos.y; var dd = (dox * dox) + (doy * doy); var d = Math.sqrt(dd); this.targetPos.z = d/100 + 1; var dz = this.targetPos.z - this.curPos.z; var az = dz * this.springStrength; this.velocity.z += az; this.velocity.z *= this.friction; this.curPos.z += this.velocity.z; this.radius = this.size*this.curPos.z; if (this.radius < 1) this.radius = 1; }; this.draw = function() { ctx.fillStyle = this.colour; ctx.beginPath(); ctx.arc(this.curPos.x, this.curPos.y, this.radius, 0, Math.PI*2, true); ctx.fill(); }; }; init(); }); I am creating a page which redirects automatically depending on the date. What I've done so far is below, but how would I make it go switch to exceeded_year.htm on 25th March 2011 for example? I will also include other dates and later put this page in a header frame and controlling the frame below so its constantly open. <html> <script type="text/javascript"> <!-- var currentTime = new Date() var date = currentTime.getDate() var month = currentTime.getMonth() + 1 var year = currentTime.getFullYear() if (year > 2011 ) {window.location = "exceeded_year.htm"; } else window.location="#" //--> </script> </html> For help I m putting it all together ..copy and paste and run ... I used 2 browsers IE and mozilla... you fill find the problem ...I know some one will definatly solve my problem ..... Code: <script type="text/javascript" language="JavaScript"><!--
function ManageTabPanelDisplay() {
var idlist = new Array('tab1focus','tab2focus','tab3focus','tab4focus','tab1ready','tab2ready','tab3ready','tab4ready','content1','content2','content3','content4');
if(arguments.length < 1) { return; }
for(var i = 0; i < idlist.length; i++) {
var block = false;
for(var ii = 0; ii < arguments.length; ii++) {
if(idlist[i] == arguments[ii]) {
block = true;
break;
}
}
if(block) { document.getElementById(idlist[i]).style.display = "block"; }
else { document.getElementById(idlist[i]).style.display = "none"; }
}
}
//--></script>
<style type="text/css">
.tab {
font-family: verdana,sans-serif;
font-size: 12px;
width: 100px;
height:30px;
white-space: nowrap;
text-align: center;
border-style: solid;
border-color: #9a9a9a;
border-left-width: 1px;
border-right-width: 1px;
border-top-width: 1px;
border-bottom-width: 0px;
padding-top: 5px;
padding-bottom: 5px;
padding-left:3px;
padding-right:3px;
cursor: pointer;
}
.tabhold {
background-color:#9a9a9a; /*color of menu #666666*/
color: white;
}
.tabfocus {
background-color:white;
color: #666666;
}
.tabcontent {
font-family: sans-serif;
font-size: 12px;
height: 320px;
border-style: solid;
border-color: #9a9a9a;
border-width: 1px;
padding-top: 15px;
padding-left: 10px;
padding-right: 10px;
overflow-y:scroll;overflow:-moz-scrollbars-vertical;
}
</style>
<table border="0" cellpadding="0" cellspacing="0" >
<tr >
<td>
<div id="tab1focus" class="tab tabfocus" style="display:block; padding-top:10px; height:39px;" >
Overview
</div>
<div id="tab1ready" class="tab tabhold" style="display:none; padding-top:10px;height:39px;">
<span onclick="ManageTabPanelDisplay('tab1focus','tab2ready','tab3ready','tab4ready','content1')" >Overview
</span>
</div>
</td><td > </td><td>
<div id="tab2focus" class="tab tabfocus" style="display:none;">
Dimensions <br />
& Details
</div>
<div id="tab2ready" class="tab tabhold" style="display:block;">
<span onclick="ManageTabPanelDisplay('tab1ready','tab2focus','tab3ready','tab4ready','content2')">Dimensions <br />
& Details</span>
</div>
</td><td > </td><td>
<div id="tab3focus" class="tab tabfocus" style="display:none;">
Quantity <br />
& Constructions
</div>
<div id="tab3ready" class="tab tabhold" style="display:block;">
<span onclick="ManageTabPanelDisplay('tab1ready','tab2ready','tab3focus','tab4ready','content3')">Quantity <br />
& Constructions</span>
</div>
</td>
<td > </td><td>
<div id="tab4focus" class="tab tabfocus" style="display:none;">
Customization <br />
Options
</div>
<div id="tab4ready" class="tab tabhold" style="display:block;">
<span onclick="ManageTabPanelDisplay('tab1ready','tab2ready','tab3ready','tab4focus','content4')">Customization <br />
Options
</span>
</div>
</td>
<td width="100%"> </td><td>
</tr>
<tr >
<td colspan="8" >
<div id="content1" class="tabcontent" style="display:block;">
content1
</div>
<div id="content2" class="tabcontent" style="display:none;">
content2
</div>
<div id="content3" class="tabcontent" style="display:none;">
content3
</div>
<div id="content4" class="tabcontent" style="display:none;">
content4
</div>
</td></tr>
</table>
please help thanks Code: <html>
<head>
<!--
CIS 340 Final
Webpage project
Author: Jeffrey Faulkner
Date: 04/27/2011
File name: Mailinglist.htm
-->
<title>Home</title>
<link href="mario.css" rel="stylesheet" type="text/css" />
<script src="random.js" type="text/javascript"></script>
<script src="ads.js" type="text/javascript"></script>
<script type="text/javascript">
function valmail() {
var lastName = document.Infoform.LastName.value;
var firstname = document.Infoform.FirstName.value;
var mi = document.Infoform.Mi.value;
var address = document.Infoform.Address.value;
var city = document.Infoform.City.value;
var state = document.Infoform.State.value;
var zip = document.Infoform.Zip.value;
var phone = document.Infoform.Phone.value;
var dob = new Date (document.Infoform.Dob.value);
var res = document.Infoform.chkResident.value;
var email = document.infoform.email.value;
var cemail = document.infoform.cemail.value;
var stuClass;
var classChecked = false;
var selectnews = document.getElementById('lstF_ID');
var advisor = selectnews.options (selectnews.selectedIndex).innerHTML
var radio = document.Infoform.Class.value;
for (var i=0; i < document.Infoform.Class.length; i++) {
if (document.Infoform.Class[i].checked) {
classChecked = true;
stuClass = document.Infoform.Class[i].value;
}
}
if (lastName == "") {
alert ("Please enter a last name");
document.Infoform.LastName.select();
return false;
} else if (firstname == "") {
alert ("Please enter a first name");
document.Infoform.FirstName.select();
return false;
}else if (address == "") {
alert ("Please enter a address");
document.Infoform.Address.select();
return false;
} else if (city == "") {
alert ("Please enter a city");
document.Infoform.City.select();
return false;
} else if (state == "") {
alert ("Please enter a state");
document.Infoform.State.select();
return false;
} else if (zip == "") {
alert ("Please enter a zip");
document.Infoform.Zip.select();
return false;
} else if (phone == "") {
alert ("Please enter a phone");
document.Infoform.Phone.select();
return false;
}else if (dob == "NaN") {
alert ("Date of Birth is not valid, use MM/DD/YYYY to enter data");
document.Infoform.Dob.select();
return false;
}else if (Class.checked == "false"){
alert ("No class selected");
return false;
}else if (email != cemail){
alert ("emails are not the same.");
return false;
}else {
alert ("Last name: " + lastName + "\n" + "First Name: " + firstname + "\n" +
"mi: " + mi + "\n" + "Address: " + address + "\n" + "City: " + city + "\n" +
"State: " + state + "\n" + "Zip: " + zip + "\n" + "phone: " + phone + "\n" +
"Date of Birth: " + dob + "\n" + "Advisor " + advisor + "\n" +
"classfication " + stuClass);
return true;
}
}
</script>
</head>
<body>
<h5><script type="text/javascript">
rNumber = randInt(5); //generate a random integer from 1 to 5
rAd = adDescription(rNumber); // description of the random ad
rLink = adLink(rNumber); // url of the random ad
document.write("<a href=" + rLink + ">");
document.write("<img src='ad" + rNumber + ".jpg' alt='" + rAd + "' />");
document.write("</a>");
</script></h5>
<hr />
<a href="Home.htm">Home</a>
<a href="speedrun.htm">Speed Runs</a>
<a href="History.htm">History</a>
<a href="mailinglist.htm">Mailing List</a>
<a href="games.xml">List of games</a>
<hr />
<h5><h3>Mario Mailing List</h3></h5>
<h5><h3><form name="Infoform" action="action%20marker" id="Infoform" onSubmit="valmail()">
<table align="center">
<tr>
<td> Last Name:</td>
<td><input type="text" name="LastName" size="20" /></td>
<td></td>
<td></td>
<td><h4>Class:</h4></td>
<td></td>
</tr>
<tr>
<td> First Name:</td>
<td><input type="text" name="FirstName" size="20" /></td>
<td></td>
<td><input type="radio" name="Class" value="Mail" /></td>
<td>Mail<td>
</tr>
<tr>
<td> MI:</td>
<td><input type="text" name="Mi" size="5" /></td>
<td></td>
<td><input type="radio" name="Class" value="email" /></td>
<td>Email</td>
</tr>
<tr>
<td> Address:</td>
<td><input type="text" name="Address" size="20" /></td>
<td></td>
<td><input type="radio" name="Class" value="email" /></td>
<td>phone</td>
</tr>
<tr>
<td> City:</td>
<td><input type="text" name="City" size="20" /></td>
<td></td>
<td><input type="radio" name="Class" value="text" /></td>
<td>text</td>
</tr>
<tr>
<td> State:</td>
<td><input type="text" name="State" size="5" /></td>
<td></td>
<td><input type="radio" name="Class" value="any" /></td>
<td>any</td>
</tr>
<tr>
<td> ZIP Code:</td>
<td><input type="text" name="Zip" size="20" /></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td> Phone:</td>
<td><input type="text" name="Phone" size="20" /></td>
<td></td>
<td><input name="chkResident" type="checkbox" /></td>
<td> All the above</td>
</tr>
<tr>
<td> Date of Birth:</td>
<td><input type="text" name="Dob" size="20" /></td>
<td></td>
<td>What news do you want to here about?</td>
<td><select size="1" name="lstF_ID">
<option selected="selected" value="1">New speed runs</option>
<option value="2">upcoming games</option>
<option value="3">New bugs found</option>
<option value="4">new speed runs</option>
<option value="5">All</option>
</select value="1"></td>
</tr>
<tr>
<td> EMail:</td>
<td><input type="text" name="email" size="20" /></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td> confirm email:</td>
<td><input type="text" name="cemail" size="20" /></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td><input type="submit" value="Submit" /></td>
</tr>
</table>
</form></h3></h5>
</body>
<hr />
<address>
All information taken from mario wiki
</address>
</html>
I have looked at this for an hour and i can not find anything wrong Hi, so I thought I could mash two bits of code together like this: Code: <div><label for="or">From:</label>
<select name="or" style="width:200px; float: right" id="or" onchange="populate(this)">
<option value="Choose">Select your starting point</option>
<option value="Guatemala">Guatemala City</option>
<option value="Xela">Quetzaltenango</option>
<option value="Antigua">Antigua</option>
<option value="Rio Dulce">Rio Dulce</option>
<option value="Coban">Coban</option>
</select></div>
<div>
<label for="de">To:</label>
<select name="de" style="width:200px; float: right" id="de"></select>
</div>
<div>
<br>
<input type="button" onclick="searchLocations()" value="Show route" />
</div>
</div>
</div>
</div>
<script type="text/javascript">
if (GBrowserIsCompatible()) {
var gpolylines = [];
function populate(o) {
d=document.getElementById('de');
if(!d){return;}
var mitems=new Array();
mitems['Choose']=[''];
mitems['Guatemala']=['Select Destination','Antigua','El Rancho junction','San Pedro La Laguna','Panajachel','Coban','Rio Hondo','Chiquimula','Esquipulas','Copan Ruinas (Honduras)','La Ruidosa junction','Rio Dulce','Flores (via Rio Dulce)','Puerto Barrios','Flores (via Coban)','Quetzaltenango'];
mitems['Xela']=['Select Destination','Guatemala City','Antigua','Chichicastenango','Huehuetenango','Panajachel','San Pedro La Laguna'];
mitems['Antigua']=['Select Destination','Guatemala City','Quetzaltenango','Escuintla','Monterrico','San Pedro la Laguna','Panajachel','Chichicastenango'];
mitems['Rio Dulce']=['Select Destination','Guatemala City','Flores','Lanquin','Coban','Puerto Barrios'];
mitems['Coban']=['Select Destination','Lanquin','Rio Dulce','Laguna Lachua NP','Flores'];
d.options.length=0;
cur=mitems[o.options[o.selectedIndex].value];
if(!cur){return;}
d.options.length=cur.length;
for(var i=0;i<cur.length;i++) {
d.options[i].text=cur[i];
d.options[i].value=cur[i];
}
}
function searchLocations()
{
var found = false;
var from = document.getElementById('or').value;
var to = document.getElementById('de').value;
for (var a = 0; a < gpolylines.length; a++)
{
if (gpolylines[a].myname.toLowerCase() == to.toLowerCase() && gpolylines[a].mycategory.toLowerCase() == from.toLowerCase())
{
found = true;
gpolylines[a].show();
}
}
if ( ! found ) alert("No matches found. Please check your spelling or refine your search.");
}
the first bit, which populates the select boxes works fine, as you can see here but the second bit (the searchLocations function) is giving me a bit more trouble. What it's supposed to be doing is saying that if there's a polyline whose category xml attribute matches the text from the 1st select box AND whose name attribute matches the 2nd select box, it should be shown. The methods have worked in the past, there are no errors reported - the only problem is I get the alert regardless of which option I am selecting. I suspect that the problem is in the if (gpolylines[a].myname.toLowerCase() == to.toLowerCase() && gpolylines[a].mycategory.toLowerCase() == from.toLowerCase()) line, as it's the only one that I really came up with on my own... or can I not get the "or" and "de" elements in that way? Or is it something else entirely? thanks in advance for any suggestions... This is a program that calculates discriminant/number of solutions for a given quadratic equation.. it all works, but the number of solution field is not filled, so i think i did something wrong on my if else statements for it.. help! Code: <html>
<head>
<title>Untitled</title>
</head>
<script type="text/javascript">
<!-- Begin
function quad(form) {
a = form.a.value
b = form.b.value
c = form.c.value
form.Dis.value = (b * b) - (4 * a * c)
If(form.Dis.value > 0)
{
form.NumSol.value = 2
}
Else;(form.Dis.value = 0)
{
form.NumSol.value = 1
}
Else
{
form.NumSol.value = 0
}
}
// End -->
</script>
<body><center>
<form name="form1">
<input type="text" name="a" size=5>
x^2 +
<input type="text" name="b" size=5>
x +
<input type="text" name="c" size=5>
<input type="button" value="Calculate"
onClick="quad(this.form)">
Discriminant: <input type="text" name="Dis" size = 7 />
Number of Solutions: <input type="text" name="NumSol" size = 7 />
</form>
</center>
</body>
</html>
Scratch that, its started working... oh well haha hi i found some javascript on the internet that seemed to do what I wanted to achieve but cannot get it to work when the mouse is over the image it should show a bigger image. I've used the internet explorer debugger and there seems to be problem in the code, but i dont understand javascript programming. Im a php man myself. all the script is enclosed in this page http://www.web-malta.com/testimage.html if you put the mouse over the photo you will see there is an error on the page. hope someonbe can help. cheers this is coder javascript : textneu = textneu.replace(/haha/,"<img src='../images/21.gif'>"); Result: <img src='../images/21.gif'> why? i want result is : <img src='../images/21.gif'> I really don't even know if I'm posting this question in the right section. I am using javascript to make a drop-down menu for a website. I really don't have any experience with javascript. The problem I'm having is that when I go to the page, the drop down menu is already dropped down. If you then hover over it, it pulls up and then hover over it again and it drops back down. It works fine after the initial glitch. Didn't know if anyone had run into this problem or if I'm just being stupid, here is the code that I'm using. Thanks in advance for any help. <a href="/mainpage.html" onMouseOver="show()" onMouseOut="hide()" ><img src="pic.png" border="0" width="90" height="24"></a></br> <div id="div1"><a href="/notherpage.html" onMouseOver="show()" onMouseOut="hide()" ><img src="pic2.png"><br><a href="/notherpage2.html" onMouseOver="show()" onMouseOut="hide()" ><img src="pic3.png"><br><a href="/lastpage.html" onMouseOver="show()" onMouseOut="hide()" ><img src="pic4.png"></div> <script type="text/javascript"> function show(){ document.getElementById("div1").style.display="block"; } function hide(){ document.getElementById("div1").style.display="none"; } </script> Hi, I have html variable as below: html += "<div class='quickSearchResultDivUnselected' style='width:" + divWidh + "px;max-width:" + divWidh + "px'><a href='#' OnClick='javascript:test('" + title + "')>" + title + "</a></div>"; The problem is with OnClick='javascript:test('" + title + "')>". How to make this link as <a OnClick='javascript:test("VALUE")'></a>, because now as result it looks like this and it doesn't work: <a OnClick='javascript:test('value')'></a>; So the problem is with ' and ". How to make it correctly in this long line of html variable ? Please help. Hey guys! :-) How do i translate this javascript sentense in to "real working" javascript. PHP Code: if(a1 "its a box/this is just for info" = got a value written){ c1 also a box = disabled; } How do i write this so it works? My first thought was: PHP Code: if(document.GetElementById(a1).value = true){ document.GetElementById(c1).disabled = true; } But cant get it working - is there somebody there could help me? :-) //Morten Larsen // Denmark. |
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