Hvordan fanger jeg id'et
Hej,Jeg arbejder lidt med at få denne Drag and Drop funktion, til at virke efter mine behov, men hvordan fanger jeg id'et på den "<a> -tag" jeg smider med?
( Det er lidt nyt for mig der her, så i må meget gerne komme med en forklaring også ;) )
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset=utf-8>
<meta name="viewport" content="width=620">
<title>HTML5 Demo: Drag and drop</title>
<link rel="stylesheet" href="css/html5demos.css">
<script src="http://html5demos.com/js/h5utils.js"></script></head>
<body>
<section id="wrapper">
<header>
<h1>Drag and drop</h1>
</header>
<style type="text/css">
li {
list-style: none;
}
li a {
text-decoration: none;
color: #000;
margin: 10px;
width: 150px;
border: 3px dashed #999;
background: #eee;
padding: 10px;
display: block;
}
*[draggable=true] {
-moz-user-select:none;
-khtml-user-drag: element;
cursor: move;
}
*:-khtml-drag {
background-color: rgba(238,238,238, 0.5);
}
li a:hover:after {
content: ' (drag me)';
}
ul {
margin-left: 200px;
min-height: 300px;
}
li.over {
border-color: #333;
background: #ccc;
}
#bin {
background: url('http://html5demos.com/images/bin.jpg') top right no-repeat;
height: 250px;
width: 166px;
float: left;
border: 5px solid #000;
position: relative;
margin-top: 0;
}
#bin.over {
background: url('http://html5demos.com/images/bin.jpg') top left no-repeat;
}
#bin p {
font-weight: bold;
text-align: center;
position: absolute;
bottom: 20px;
width: 166px;
font-size: 32px;
color: #fff;
text-shadow: #000 2px 2px 2px;
}
</style>
<article>
<p>Drag the list items over the dustbin, and drop them to have the bin eat the item</p>
<div id="bin"></div>
<ul>
<li><a id="8" href="#">one</a></li>
<li><a href="#" id="10">two</a></li>
<li><a href="#" id="three">three</a></li>
<li><a href="#" id="four">four</a></li>
<li><a href="#" id="five">five</a></li>
</ul>
</article>
<script>
var eat = ['yum!', 'gulp', 'burp!', 'nom'];
var yum = document.createElement('p');
var msie = /*@cc_on!@*/0;
yum.style.opacity = 1;
var links = document.querySelectorAll('li > a'), el = null;
for (var i = 0; i < links.length; i++) {
el = links[i];
el.setAttribute('draggable', 'true');
addEvent(el, 'dragstart', function (e) {
e.dataTransfer.effectAllowed = 'copy'; // only dropEffect='copy' will be dropable
e.dataTransfer.setData('Text', this.id); // required otherwise doesn't work
});
}
var bin = document.querySelector('#bin');
addEvent(bin, 'dragover', function (e) {
if (e.preventDefault) e.preventDefault(); // allows us to drop
this.className = 'over';
e.dataTransfer.dropEffect = 'copy';
return false;
});
// to get IE to work
addEvent(bin, 'dragenter', function (e) {
this.className = 'over';
return false;
});
addEvent(bin, 'dragleave', function () {
this.className = '';
});
addEvent(bin, 'drop', function (e) {
if (e.stopPropagation) e.stopPropagation(); // stops the browser from redirecting...why???
var el = document.getElementById(e.dataTransfer.getData('Text'));
el.parentNode.removeChild(el);
// stupid nom text + fade effect
bin.className = '';
yum.innerHTML = eat[parseInt(Math.random() * eat.length)];
var y = yum.cloneNode(true);
bin.appendChild(y);
setTimeout(function () {
var t = setInterval(function () {
if (y.style.opacity <= 0) {
if (msie) { // don't bother with the animation
y.style.display = 'none';
}
clearInterval(t);
} else {
y.style.opacity -= 0.1;
}
}, 50);
}, 250);
// AJAX START
var str = e.dataTransfer.setData('Text', this.id);
if (str=="")
{
document.getElementById("txtHint").innerHTML="";
return;
}
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
}
}
xmlhttp.open("GET","favorit.php?q="+str,true);
xmlhttp.send();
// AJAX SLUT
return false;
});
</script>
<div id='txtHint'>
Favorit:
</div>
</body>
</html>
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