function IsNumeric(sText)
	{
		var ValidChars = "0123456789.";
		var IsNumber=true;
		var Char; 
		for (i = 0; i < sText.length && IsNumber == true; i++) 
		{ 
			Char = sText.charAt(i); 
		     if (ValidChars.indexOf(Char) == -1) 
				{
					IsNumber = false;
				}
		}
		return IsNumber;  
}
							
function trimAll(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;
}