function NoGTLT(myfield, e, dec) {
	var key;
	var keychar;

	if (window.event)
		key = window.event.keyCode;
	else if (e)
		key = e.which;
	else
		return true;
	keychar = String.fromCharCode(key);

	if (keychar == "<" 
	||  keychar == ">"
	||  keychar == "*"
	||  keychar == "~") {
		return false;
	}
	return true;
}
function ReplaceGTLT(ctl) {
	// dim variable
	var rExp;
	// mask for all greater-thans
	rExp = />/g;
	ctl.value = ctl.value.replace(rExp, "");
	// mask for all less-thans
	rExp = /</g;
	ctl.value = ctl.value.replace(rExp, "");
}