function IsEmpty(s)
{
	 if (s.length == 0 || s.indexOf(' ', 0) != -1)
	 return true;
}
function IsEmpty2(s)
	{
	 if (s.length == 0)
	 return true;
}
function IsEmpty3(s)
{
	 if (s.length == 0 || s.indexOf('@', 0) == -1 || s.indexOf('.', 0) == -1)
	 return true;
}
function IsEmpty4(s)
{
	var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
	if(reg.test(s) == false)
    return true;
}
function validateTLForm() {

	if(IsEmpty4(window.document.loginform.email.value))
	{
		alert("Please enter a valid email address");
		document.loginform.email.style.backgroundColor = "#feefef";
		document.loginform.email.focus();
		return false;
	}	

	if(IsEmpty2(window.document.loginform.pass.value))
	{
		alert("Please enter your password");
		document.loginform.pass.style.backgroundColor = "#feefef";
		document.loginform.pass.focus();
		return false;
	}	
	
	return true;
}
function validateTLForm2() {

	if(IsEmpty4(window.document.loginform2.email.value))
	{
		alert("Please enter a valid email address");
		document.loginform2.email.style.backgroundColor = "#feefef";
		document.loginform2.email.focus();
		return false;
	}	

	if(IsEmpty2(window.document.loginform2.pass.value))
	{
		alert("Please enter your password");
		document.loginform2.pass.style.backgroundColor = "#feefef";
		document.loginform2.pass.focus();
		return false;
	}	
	
	return true;
}

function validateALForm() {

	if(IsEmpty2(window.document.adminform.user.value))
	{
		alert("Please enter adminstrator username");
		document.adminform.user.style.backgroundColor = "#feefef";
		document.adminform.user.focus();
		return false;
	}	

	if(IsEmpty2(window.document.adminform.pass.value))
	{
		alert("Please enter administrator password");
		document.adminform.pass.style.backgroundColor = "#feefef";
		document.adminform.pass.focus();
		return false;
	}	
	
	return true;
}