function changeuserclass() {

var NAME = document.getElementById("username");

NAME.className="txtbx";

} 
function changepasswordclass() {

var NAME = document.getElementById("password");

NAME.className="txtbx";
}
function changeifpasswordempty() {

var NAME = document.getElementById("password");
if(NAME.value = "")
	{
	NAME.className="passwordsimple";
	}
}
function clearfields() {
		
		var NAME = document.getElementById("username");
		NAME.value = "";
		var NAME = document.getElementById("password");
		NAME.value = "";
		var NAME = document.getElementById("submit1");
		NAME.focus();
}