JavaScript去除空格

<SCRIPT LANGUAGE="JavaScript">

<!--

//出处:网上搜集

//made by yaosansi 2005-12-02

//For more visit http://www.yaosansi.com

// Trim() , Ltrim() , RTrim()

String.prototype.Trim = function() 

{ 

return this.replace(/(^\s*)|(\s*$)/g, ""); 

} 

String.prototype.LTrim = function() 

{ 

return this.replace(/(^\s*)/g, ""); 

} 

String.prototype.RTrim = function() 

{ 

return this.replace(/(\s*$)/g, ""); 

} 

//-->

</SCRIPT>