function checkNumber(field,fieldname)
	{
		intField = "document." + field;
		intField2 = eval(intField + ".value");
		intField3 = eval(intField);
		if (intField2 != "")
		{
			if (!isNum3(intField2,fieldname))
			{
				intField3.focus();
				intField3.select();
			}
		}
	}
	
	function isNum3(passedVal,fieldname) {
	if (passedVal == "") {
	return (false);
	}
	for (i=0; i<passedVal.length; i++) {
	if (passedVal.charAt(i) < "0" && passedVal.charAt(i) != ".") {
	alert("Error in " + fieldname + ". Please enter numbers only.");  return (false);
	}
	if (passedVal.charAt(i) > "9" && passedVal.charAt(i) != ".") {
	alert("Error in " + fieldname + ". Please enter numbers only.");  return (false);
	}
	}
	return (true);
	}