📄 clip.htm
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<HTML>
<HEAD>
<STYLE>
A {text-decoration:none; color:red}
</STYLE>
<SCRIPT LANGUAGE="JavaScript">
<!--
/*************************************
Code in this document is copyright of
Dan Steinman of Industrial Dreams 1998
Available at The Dynamic Duo
http://www.dansteinman.com/dynduo/
*************************************/
ns4 = (document.layers)? true:false
ie4 = (document.all)? true:false
function init() {
if (ns4) block = document.blockDiv
if (ie4) block = blockDiv.style
}
function clipValues(obj,which) {
if (ns4) {
if (which=="t") return obj.clip.top
if (which=="r") return obj.clip.right
if (which=="b") return obj.clip.bottom
if (which=="l") return obj.clip.left
}
else if (ie4) {
var clipv = obj.clip.split("rect(")[1].split(")")[0].split("px")
if (which=="t") return Number(clipv[0])
if (which=="r") return Number(clipv[1])
if (which=="b") return Number(clipv[2])
if (which=="l") return Number(clipv[3])
}
}
//-->
</SCRIPT>
</HEAD>
<BODY BGCOLOR="#FFFFFF" onLoad="init()">
<DIV ID="blockDiv" STYLE="position:absolute; left:50; top:100; width:250; height:180; clip:rect(0,250,180,0); background-color:#FF0000; layer-background-color:#FF0000;">
<IMG src="ss07075.jpg" border=0>
</DIV>
<center>
这张照片的尺寸是 250 * 180, 请检查 Clip 四个边的值 <br>
<A HREF="javascript:alert(clipValues(block,'t'))">top</A>
<A HREF="javascript:alert(clipValues(block,'r'))"> right</A>
<A HREF="javascript:alert(clipValues(block,'b'))"> bottom</A>
<A HREF="javascript:alert(clipValues(block,'l'))"> left</A>
<center>
</BODY>
</HTML>
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