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function mu(){
d.releaseCapture();
d.style.display="none";
hjs.style.display="";
var x2=event.clientX;
var y2=event.clientY;
x=Math.min(d.startX,x2);
y=Math.min(d.startY,y2);
x1=Math.max(d.startX,x2);
y1=Math.max(d.startY,y2);
with(hjs.style){
left=x;
top=y;
width=x1-x;
height=y1-y;
}
}
function mv(){
var x2=event.clientX;
var y2=event.clientY;
x=Math.min(d.startX,x2);
y=Math.min(d.startY,y2);
x1=Math.max(d.startX,x2);
y1=Math.max(d.startY,y2);
with(d.style){
left=x;
top=y;
width=x1-x;
height=y1-y;
}
}
</script>
<body onmousedown=md() >
用滑鼠開始畫吧
<div style="border:#444 1px solid;position:absolute;overflow:hidden;background-Color:#eee;display:none;" id="d"></div>
<div style="border:#000 1px solid;position:absolute;overflow:hidden;background-Color:#000;display:none;" id="hjs"></div>
</body>
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