// JavaScript Document

	function isEmail( str)
	{  
		var regs	=	/^\w+\@+\w+\.+\w+/;
 		if( regs.exec( str))
		{
			return true;
		} else {
			return false;
		}
		
	}
	
	function leftTrim(sString)
	{
		while (sString.substring(0,1) == ' ')
		{
			sString = sString.substring(1, sString.length);
		}
		return sString;
	}
	function rightTrim(sString)
	{
		while (sString.substring(sString.length-1, sString.length) == ' ')
		{
			sString = sString.substring(0,sString.length-1);
		}
		return sString;
	}
	function trim(sString)
	{
		while (sString.substring(0,1) == ' ')
		{
			sString = sString.substring(1, sString.length);
		}
		while (sString.substring(sString.length-1, sString.length) == ' ')
		{
			sString = sString.substring(0,sString.length-1);
		}
		return sString;
	}