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<script>
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function isNumeric(strNumber) {
var newPar=/^(-|\+)?\d+(\.\d+)?$/
alert(newPar.test(strNumber)); }
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function isUnsignedNumeric(strNumber) {
var newPar=/^\d+(\.\d+)?$/
alert(newPar.test(strNumber)); }
//¼ì²éÊÇ·ñΪÕûÊý
function isInteger(strInteger) {
var newPar=/^(-|\+)?\d+$/
alert(newPar.test(strInteger)); }
//¼ì²éÊÇ·ñΪÕýÕûÊý
function isUnsignedInteger(strInteger) {
var newPar=/^\d+$/
alert(newPar.test(strInteger)); }
</script>
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    function imagechick()
   {
     form1.CheckImg.src="CreatImage.aspx?temp="+Math.random();
     return false;//²»ÉÏ´«µ½·þÎñÆ÷
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[·­Òë]High Performance JavaScript(014)

Recursion Patterns  µÝ¹éģʽ
    When you run into a call stack size limit, your first step should be to identify any instances of recursion in the code. To that end, there are two recursive patterns to be aware of. The first is the straightforward recursive pattern represented ......

[·­Òë]High Performance JavaScript(020)

Yielding with Timers  Óö¨Ê±Æ÷Èóöʱ¼äƬ
    Despite your best efforts, there will be times when a JavaScript task cannot be completed in 100 milliseconds or less because of its complexity. In these cases, it's ideal to yield control of the UI thread so that UI updates may occur ......

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ÓÉÓÚ»ðºüä¯ÀÀÆ÷²»Ö§³Ö“removeNode”º¯Êý£¬ËùÒÔһϴúÂëÖ»Ö§³ÖIE.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
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