function checker()	{
		if (document.form1.fname.value == "")	{alert("Please enter your FIRST NAME.");document.form1.fname.focus();return false;}
		if (document.form1.lname.value == "")	{alert("Please enter your LAST NAME.");document.form1.lname.focus();return false;}
		//if (document.form1.company.value == "")	{alert("Please enter your COMPANY NAME.");document.form1.company.focus();return false;}
		//if (document.form1.street.value == "")	{alert("Please enter your STREET ADDRESS.");document.form1.street.focus();return false;}
		//if (document.form1.city.value == "")	{alert("Please enter your CITY.");document.form1.city.focus();return false;}
		//if (document.form1.state.selectedIndex==0)	{alert("Please select your STATE.");document.form1.state.focus();return false;}
		//if (document.form1.zip.value == "")		{alert("Please enter your ZIP CODE.");document.form1.zip.focus();return false;}
		//if (document.form1.phone1.value == "")	{alert("Please enter your FULL TELEPHONE NUMBER.");document.form1.phone1.focus();return false;}
		//if (document.form1.phone1.value<201)	{alert("Your AREA CODE cannot be validated - please re-enter.");document.form1.phone1.focus();return false;}
		//if (document.form1.phone2.value == "")	{alert("Please enter your FULL TELEPHONE NUMBER.");document.form1.phone2.focus();return false;}
		//if (document.form1.phone2.value<201)	{alert("Your PHONE EXCHANGE NUMBER cannot be validated - please re-enter.");document.form1.phone2.focus();return false;}
		//if (document.form1.phone3.value == "")	{alert("Please enter your FULL TELEPHONE NUMBER.");document.form1.phone3.focus();return false;}
		//if (document.form1.phone3.value.length<4)	{alert("Please enter your FULL TELEPHONE NUMBER.");document.form1.phone3.focus();return false;}
		if (document.form1.email.value == "")	{alert("Please enter your EMAIL ADDRESS.");document.form1.email.focus();return false;}
		return emailCheck();
	}

	function isNum(str) {
		for (var i = 0; i < 5; i++) {
			var ch = str.substring(i, i + 1);
			if (ch < "0" || "9" < ch) {return false;}
		}
		return true;
	}

	function emailCheck() {
		var emailStr = document.form1.email.value;
		var checkTLD=1;
		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 +")*$");
		var matchArray=emailStr.match(emailPat);
		if (matchArray==null) {alert("The E-mail address seems incorrect (check @ and .'s)");return false;}
		var user=matchArray[1];
		var domain=matchArray[2];
		for (i=0; i<user.length; i++) {
			if (user.charCodeAt(i)>127) {alert("The E-mail address username contains invalid characters.");return false;}
		}
		for (i=0; i<domain.length; i++) {
			if (domain.charCodeAt(i)>127) {alert("The E-mail address domain name contains invalid characters.");return false;}
		}
		if (user.match(userPat)==null) {alert("The E-mail address username doesn't seem to be valid.");return false;}
		var IPArray=domain.match(ipDomainPat);
		if (IPArray!=null) {
			for (var i=1;i<=4;i++) {
				if (IPArray[i]>255) {alert("The E-mail Destination IP address is invalid!");return false;}
			}
			return true;
		}
		var atomPat=new RegExp("^" + atom + "$");
		var domArr=domain.split(".");
		var len=domArr.length;
		for (i=0;i<len;i++) {
			if (domArr[i].search(atomPat)==-1) {alert("The E-mail address domain name does not seem to be valid.");return false;}
		}
		if (checkTLD && domArr[domArr.length-1].length!=2 && domArr[domArr.length-1].search(knownDomsPat)==-1) {
			alert("The E-mail address address must end in a well-known domain or two letter " + "country.");
			return false;
		}
		if (len<2) {alert("The E-mail address address is missing a hostname!");return false;}
		return true;
	}