function validateUserLogin(f) {
	if (f.txtUsername.value=="") {
	alert("please enter user name");
	f.txtUsername.focus();
	return false;
	}
	
	if (f.txtPassword.value=="") {
	alert("please enter your password");
	f.txtPassword.focus();
	return false;
	}
return true;
}

function validateForm(d) {
	if (d.txtFirstName.value=="") {
	alert("please enter your first name");
	d.txtFirstName.focus();
	return false;
	}
	
	if (d.txtLastName.value=="") {
	alert("please enter your last name");
	d.txtLastName.focus();
	return false;
	}
	if (d.txtUserName.value=="") {
	alert("please enter your username");
	d.txtUserName.focus();
	return false;
	}
		 
	if (d.txtPassword.value=="") {
	alert("please enter your password");
	d.txtPassword.focus();
	return false;
	}
	
	
	if (d.txtRetypePassword.value=="") {
	alert("please retype your password");
	d.txtRetypePassword.focus();
	return false;
	}

	
	
	if (d.txtPassword.value!=d.txtRetypePassword.value) {
	alert("Your both password are not same");
	d.txtPassword.value = "";
	d.txtRetypePassword.value = "";
	d.txtPassword.focus();
	return false;
	}

	if (d.txtEmail.value=="") {
	alert("please enter your email address");
	d.txtEmail.focus();
	return false;
	}


if(d.txtEmail.value.indexOf('@')==-1|| d.txtEmail.value.indexOf('.')==-1)
	{  
		   alert("Invalid E-Mail Address.");
		   d.txtEmail.focus();
		   return(false);
	}
	
	if (d.enc.value=="") {
	alert("please enter 8 digit varification code");
	d.enc.focus();
	return false;
	}
	
	
return true;
}