此函数可以删除指定HTML对象的所有自节点。
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function removeChildrenFromNode(node) {
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if(node == undefined || node == null) {
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return;
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}
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var len = node.childNodes.length;
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while (node.hasChildNodes()) {
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node.removeChild(node.firstChild);
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}
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}
实例代码：
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<!doctype html public “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
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<html xmlns=“http://www.w3.org/1999/xhtml”>
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<title></title>
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<script language=“javascript” type=“text/javascript”>
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//<![cdata[
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function rm(){
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obj = document.getElementById(“tb”);
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removeChildrenFromNode(obj)
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}
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function removeChildrenFromNode(node)
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{
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if(node == undefined || node == null)
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{
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return;
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}
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//alert(node);
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var len = node.childNodes.length;
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while (node.hasChildNodes())
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{
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node.removeChild(node.firstChild);
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}
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}
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//]]>
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</script>
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</head>
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<table width=“100%” cellspacing=“0″ id=“tb”>
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</table>
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<input type=“reset” value=“tt” onclick=“rm();”>
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</center>
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</body></html>
