function pageload()
	{
		$("subject").focus();
	}
	
	Event.observe(window,"load",pageload);
	
	function validate()
	{

		var emailError=$("emailError");
		var subjectError=$("subjectError");
		var messageError=$("messageError");
		var objEmail=$("emailAddress");
		var objSubject=$("subject");
		var objMessage=$("message");
		
		if (emailError) emailError.style.display="none";
		subjectError.style.display="none";
		messageError.style.display="none";
	
		if (objEmail && objEmail.value=="")
		{
			emailError.innerHTML="Email address required";
			emailError.style.display="block";
			return false;
		}
		else if (objEmail &&  doValidateEmail(objEmail.value)==false)
		{
			emailError.innerHTML="Invalid Email Address";
			emailError.style.display="block";
			return false;
		}
		else if (objSubject.value=="")
		{
			subjectError.innerHTML="Value required";
			subjectError.style.display="block";
			return false;
		}
		else if (objMessage.value=="")
		{
			messageError.innerHTML="Value required";
			messageError.style.display="block";
			return false;
		}
		
		return true;
	}
	
	function doValidateEmail(emailStr) {
        if (emailStr.length == 0) {
            return true;
        }
        // TLD checking turned off by default
        var checkTLD=0;
        var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
        var emailPat=/^(.+)@(.+)$/;
        var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
        var validChars="\[^\\s" + specialChars + "\]";
        var quotedUser="(\"[^\"]*\")";
        var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
        var atom=validChars + '+';
        var word="(" + atom + "|" + quotedUser + ")";
        var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
        var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
        var matchArray=emailStr.match(emailPat);
        if (matchArray==null) {
            return false;
        }
        var user=matchArray[1];
        var domain=matchArray[2];
        for (i=0; i<user.length; i++) {
            if (user.charCodeAt(i)>127) {
                return false;
            }
        }
        for (i=0; i<domain.length; i++) {
            if (domain.charCodeAt(i)>127) {
                return false;
            }
        }
        if (user.match(userPat)==null) {
            return false;
        }
        var IPArray=domain.match(ipDomainPat);
        if (IPArray!=null) {
            for (var i=1;i<=4;i++) {
                if (IPArray[i]>255) {
                    return false;
                }
            }
            return true;
        }
        var atomPat=new RegExp("^" + atom + "$");
        var domArr=domain.split(".");
        var len=domArr.length;
        for (i=0;i<len;i++) {
            if (domArr[i].search(atomPat)==-1) {
                return false;
            }
        }
        if (checkTLD && domArr[domArr.length-1].length!=2 && 
            domArr[domArr.length-1].search(knownDomsPat)==-1) {
            return false;
        }
        if (len<2) {
            return false;
        }
        return true;
    }