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framesetObject.cols=col1,col2,col3....

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<html>
<frameset cols="50%,50%">
  <frame src="frame_cols.htm">
  <frame src="frame_a.htm">
</frameset>
</html>

HTML Îĵµ "frame_cols.htm" ±»·ÅÈëµÚÒ»ÁУ¬¶ø HTML Îĵµ "frame_a.htm" ±»·ÅÈëµÚ¶þÁС£

ÏÂÃæÊÇ "frame_cols.htm" µÄÔ´´úÂ룺

<html>
<head>
<script type="text/javascript">
function changeCols()
  {
  parent.document.getElementById("main").cols="30%,70%"
  }
  
function restoreCols()
  {
  parent.document.getElementById("main").cols="50%,50%"
  }
</script>
</head>
<body>

<input type="button" onclick="changeCols()"
value="Change column size" />
<input type="button" onclick="restoreCols()"
value="Restore column size" />

</body>
</html>
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