document.getElementById("email").focus();

function checkFields()
{
    document.getElementById("error").style.display = "none";
    if (document.getElementById("subject").value == "")
    {
	    document.getElementById("error").style.display = "";
	    document.getElementById("error").innerHTML = subjectErr;
	    document.getElementById("subject").focus();
	    return false;
    }
    else if (document.getElementById("message").value == "")
    {
	    document.getElementById("error").style.display = "";
	    document.getElementById("error").innerHTML = messageErr;
	    document.getElementById("message").focus();
	    return false;
    }
    else if (document.getElementById("email").value != "" && document.getElementById("email").value.search(/^[a-zA-Z][\w\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]$/) == -1)
    {
	    document.getElementById("error").style.display = "";
	    document.getElementById("error").innerHTML = emailErr;
	    document.getElementById("email").focus();
	    return false;
    }
    else
	    document.mail.submit();
}