function confirmDEL()
{
	var ok=confirm("Are you sure you want to delete the item?\nThe item cannot be restore once you delete.");
	if(ok){return true;}
	else return false;
}

function confirmLogout()
{
	var ok=confirm("Are you sure you want to logout?");
	if(ok){return true;}
	else return false;
}

function num()
{if (event.keyCode < 48 || event.keyCode > 57) event.returnValue = false;}