function onlyAlpha() {
	// Only Alpha or space Keystrokes returned
	if(event.keyCode != 32) {
		if (event.keyCode < 65 || (event.keyCode > 90 && event.keyCode < 97) || event.keyCode > 122)
			event.returnValue = false;
	}
}
function onlyAlphaNumeric() {
	// Only Alpha or  Numeric or space Keystrokes returned
	if(event.keyCode != 32) {
		if (event.keyCode < 48 || (event.keyCode > 57 && event.keyCode < 65) || (event.keyCode > 90 && event.keyCode < 97) || event.keyCode > 122)
			event.returnValue = false;
	}
}
function onlyInteger() {
	//Only Numeric Keystrokes returned
	if(event.keyCode < 48 || event.keyCode > 57)
		event.returnValue = false;
}
function onlyFloat() {
	// Only Numeric or Period Keystrokes returned
  if(event.keyCode == 47 || event.keyCode < 46 || event.keyCode > 57) {
    event.returnValue = false;
  }
}
function onlyFloat(obj) {
	// Only Numeric or the first period keystrokes returned
	if(event.keyCode == 47 || event.keyCode < 46 || event.keyCode > 57)
		event.returnValue = false;
	else {
		if(obj.value == '.')
			obj.value = '0.';
		if(event.keyCode == 46 && obj.value.search(/\./) > 0)
			event.returnValue = false;
	}
}
function onlyDate(obj) {
	// Only Numeric keystrokes returned
	if(event.keyCode < 48 || event.keyCode > 57)
		event.returnValue = false;
	if(obj.value.length == 2 || obj.value.length == 5)
		obj.value = obj.value + '/';
}
function onlyTime() {
	// Only Numeric and these chars[A,P,M,:, ]
	if(event.keyCode < 48 || event.keyCode > 58) {
		if(event.keyCode != 32 && event.keyCode != 77 && event.keyCode != 109 && event.keyCode != 65 && event.keyCode != 97 && event.keyCode != 80 && event.keyCode != 112)
			event.returnValue = false;
	}
}
function noQuotes() {
	// Everything but(') and (") are returned
	if(event.keyCode == 34 || event.keyCode == 39)
		event.returnValue = false;
}
function none() {
  event.returnValue = false;
}