function clearLogin()
{
	document.getElementById('username').value="";
	document.getElementById('password').value="";
}

function disableEnterKey(e)
{
var key;

if(window.event)
	key = window.event.keyCode; //IE
else
	key = e.which; //firefox

	if(key == 13)
		return false;
	else
		return true;
}