Non conosco jQuery, quindi non ti posso aiutare. Ma se per te non è indispensabile usarlo:
codice:
<!doctype html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Draggable objects</title>
<script type="text/javascript">
var bMouseUp = true, oDragging, nMouseX, nMouseY, nStartX, nStartY, nZFocus = 100 /* the highest z-Index present in your page plus 1 */;
function dragDown(oPssEvt1) {
var bExit = true, oMsEvent1 = oPssEvt1 || /* IE */ window.event;
for (var iNode = oMsEvent1.target; iNode; iNode = iNode.parentNode) {
if (iNode.className === "draggable") { bExit = false; oDragging = iNode; break; }
}
if (bExit) { return; }
bMouseUp = false;
nStartX = nStartY = 0;
for (var iOffPar = oDragging; iOffPar; iOffPar = iOffPar.offsetParent) {
nStartX += iOffPar.offsetLeft;
nStartY += iOffPar.offsetTop;
}
nMouseX = oMsEvent1.clientX;
nMouseY = oMsEvent1.clientY;
oDragging.style.zIndex = nZFocus++;
return false;
}
function dragMove(oPssEvt2) {
if (bMouseUp) { return; }
var oMsEvent2 = oPssEvt2 || /* IE */ window.event;
oDragging.style.left = String(nStartX + oMsEvent2.clientX - nMouseX) + "px";
oDragging.style.top = String(nStartY + oMsEvent2.clientY - nMouseY) + "px";
}
function dragUp() { bMouseUp = true; }
document.onmousedown = dragDown;
document.onmousemove = dragMove;
document.onmouseup = dragUp;
</script>
<style type="text/css">
.draggable {
position: fixed;
left: 0;
top: 0;
width: auto;
height: auto;
cursor: move;
}
#myDiv {
width: 300px;
height: 200px;
left: 200px;
top: 200px;
background-color: #00ff00;
}
</style>
</head>
<body>
<div class="draggable" id="myDiv">
Hello world!</p></div>
<div class="draggable" style="background-color:#aaaaaa;">Another hello world!</div>
</body>
</html>
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