<!--
function IsNumeric(text) {
var ValidChars = "0123456789.";
var isNumber = true;
var Char;
for(i=0; i<text.length && isNumber; i++) {
	Char = text.charAt(i);
	if(ValidChars.indexOf(Char) == -1)
		isNumber = false;
	}
return isNumber;
}

function IsAlphaNum(text) {
var ValidChars = "abcdefghijklmnopqrstuvwxyz0123456789";
var isValid = true;
var Char;
for(i=0; i<text.length && isValid; i++) {
	Char = text.charAt(i);
	if(ValidChars.indexOf(Char) == -1)
		isValid = false;
	}
return isValid;
}
-->