// simple form validation script
function checkLoginForm(form) {
	   if(form.j_username.value == '') {
			   alert('Please enter your username');
			   //alert('Please enter your username');
			   return false;
	   }
	   if(form.j_password.value == '') {
			   alert('Please enter your password');
			   //alert('Please enter your password');
			   return false;
	   }
	   return true;
}