JavaScript Function Is Numeric (validate number, valid number)

This function checks the passed text to see if it is a numeric value and returns True if it is, False if it is not.

/*

	IsNumeric - true for all numeric, false if not

*/

function IsNumeric(PossibleNumber)

{

	var PNum = new String(PossibleNumber);

	var regex = /[^0-9]/;

	return !regex.test(PNum);

}