String.prototype.Trim = function()
{
	return (this.replace(/^\s+|\s+$/g,""));
}
function checkNumber(number)
{
	if( number == null )
		return false;
		
	if( number.length == 0 )
		return false;
	
		
	for(var i = 0; i < number.length; i++)
	{
		var strCur = number.substr(i, 1);
		if( strCur < "0" || strCur > "9" )
			return false;
	}
	return true;
}
function checkChar(Charstr)
{
	if( Charstr == null )
		return false;
		
	if( Charstr.length == 0 )
		return false;
	Charstr=Charstr.toUpperCase();
		
	for(var i = 0; i < Charstr.length; i++)
	{
		var strCur = Charstr.substr(i, 1);
		if(( strCur >= "A" && strCur <= "Z" ) || ( strCur >= "0" && strCur <= "9" ) ) return true;
			return false;
	}
	return true;
}