function initializeFields() {
document.getElementById("loginfield").value="user";
document.getElementById("passwordfield").value="pass";
}

function clearLoginField() {

	if(document.getElementById("loginfield").value=="user")
	{
	document.getElementById("loginfield").value="";
	}

}

function checkLoginField() {

	if(document.getElementById("loginfield").value=="")
	{
	document.getElementById("loginfield").value="user";
	}

}

function clearPasswordField() {

	if(document.getElementById("passwordfield").value=="pass")
	{
	document.getElementById("passwordfield").value="";
	}

}

function checkPasswordField() {

	if(document.getElementById("passwordfield").value=="")
	{
	document.getElementById("passwordfield").value="pass";
	}

}