// function used for validating the login form

function Validate(form){
	var user,pass;
	
	user = form.staff;
	pass = form.pass;
	
	// To validate the username
	if( user.value.replace(/ /g,"") == "" ){
		alert(' USER ID can\'t be NULL !');
		user.focus();
		user.select();
		return false;
	}
	
	// To validate the password
	if( pass.value.replace(/ /g,"") == "" ){
		alert(' PASSWORD can\'t be NULL !');
		pass.focus();
		pass.select();
		return false;
	}
}