Код из демонстрационная ссылка работает на IE8, но не на IE9. В чем причина этого?
Как заставить его работать на IE9?
Код:
<!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>
<title>Simple drag demo</title>
<style>
#dragme {
position:absolute;
cursor:move;
background:#eee;
border:1px solid #333;
padding:10px;
}
</style>
<script>
function makeDraggable(element) {
/* Simple drag implementation */
element.onmousedown = function(event) {
if(element.setCapture) { element.setCapture(); }
document.onmousemove = function(event) {
event = event || window.event;
element.style.left = event.clientX + 'px';
element.style.top = event.clientY + 'px';
};
document.onmouseup = function() {
if(element.releaseCapture) { element.releaseCapture(); }
document.onmousemove = null;
};
};
/* These 3 lines are helpful for the browser to not accidentally
* think the user is trying to "text select" the draggable object.
* Unfortunately they also break draggability outside the window.
*/
element.unselectable = "on";
element.onselectstart = function(){return false};
element.style.userSelect = element.style.MozUserSelect = "none";
}
</script>
</head>
<body onload="makeDraggable(document.getElementById('dragme'))">
<div id="dragme">Drag me (outside window)</div>
</body>
</html>