function validlogin(username,pwd)
{
	
   	if (emptyField(username))
	    {
		    alert('Please enter Username');
		    username.focus();
		    return false;
	    } 	
	if (emptyField(pwd))
	    {
		    alert('Please enter Password');
		    pwd.focus();
		    return false;
		}
	if (pwd.value.length < 6) 
	{
	    alert('Password must be at least 6 characters.');
	    pwd.focus();
	    return false;
	}          
	
}

function validsubscription(txtEmail) {

    if (emptyField(txtEmail)) {
        alert('Please enter email address');
        txtEmail.focus();
        return false;
    }
    if (!validEmailId(txtEmail.value)) {
        alert('Please enter valid email address');
        txtEmail.focus();
        return false;
    }  
   

}