<script>

var bIsCatchFlyBar = false;
var dragClickX = 0;
var dragClickY = 0;
var displayway = false;

function show(){
alert("window.event.x:"+window.event.x+"\nwindow.event.y:"+window.event.y+"\nevent.clientX:"+event.clientX+"\nevent.clientY:"+event.clientY+"\nevent.offsetX:"+event.offsetX+"\nevent.offsetY:"+event.offsetY+"\nwindow.event.screenX:"+window.event.screenX+"\nwindow.event.screenY:"+window.event.screenY+"\nscrollleft+x:"+document.body.scrollTop+event.x);
}

function catchFlyBar(e){
?var obj = getSelectorObj('test');
?var objaaa = getSelectorObj('screenFront');
?screenChange(objaaa);
?objaaa.style.visibility="visible";
?bIsCatchFlyBar = true;
?var x=event.x+document.body.scrollLeft;
?var y=event.y+document.body.scrollTop;
?dragClickX=x-obj.offsetLeft;
?dragClickY=y-obj.offsetTop;
?obj.setCapture();
?document.onmousemove? = onmousemove1;
?document.onmouseup? = onmouseup1;
}

function getSelectorObj(name){
?var obj;
?if (document.layers){
??obj = document.layers[name];
??? }
??? else if (document.all){
??obj = document.all[name];
??? }
??? else if (document.getElementById){
??????? obj = document.getElementById(name);
??? }
?return obj;
}

function onmouseup1(){
?var obj = getSelectorObj('test');
?var objaaa = getSelectorObj('screenFront');
?screenChange(objaaa);
?objaaa.style.visibility="hidden";
?bIsCatchFlyBar = false;
?obj.releaseCapture();
}

function onmousemove1(){
?if(bIsCatchFlyBar){
??var obj = getSelectorObj('test');
???obj.style.left = event.x+document.body.scrollLeft-dragClickX;?
???obj.style.top = event.y+document.body.scrollTop-dragClickY;
?}
}

function screenChange(obj)
{
?obj.style.left=0;
?obj.style.top=0;
?obj.style.height=document.body.scrollHeight;
?obj.style.width=document.body.scrollWidth;
}
</script>
<div id="screenFront"? style="position:absolute;visibility:hidden;width:100%;height:100%;background: #000000;filter:alpha(opacity=50)"></div><div? id="test" style="position:absolute;left:100;top:100">
<table border=1 cellpadding=15 cellspacing=15 >
<tr><td>
<table><tr style="cursor:move"? nowrap onMouseDown="catchFlyBar()"><td>Click here to show. </td></tr></table>
</div>
</td></tr>
</table>

?