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


var highlightcolor="#494948"
var ns6=document.getElementById&&!document.all
var previous=''
var eventobj
var intended=/INPUT|TEXTAREA|SELECT|OPTION/

function checkel(which){
if (which.style&&intended.test(which.tagName)){
if (ns6&&eventobj.nodeType==3)
eventobj=eventobj.parentNode.parentNode
return true}
else
return false}

function highlight(e){
eventobj=ns6?	e.target : event.srcElement
if (previous!=''){
if (checkel(previous))
previous.style.backgroundColor=''
previous=eventobj
if (checkel(eventobj))
eventobj.style.backgroundColor=highlightcolor}
else{
if (checkel(eventobj))
eventobj.style.backgroundColor=highlightcolor
previous=eventobj}}


	function proveriFormu()
	{
		var numMatch = "^[2-9]\\d{2}[2,3,4,6,7,8,9][1,2,3,4,6,7,8,9,0][1,2,3,4,6,7,8,9,0]\\d{4}$";
		var intMatch = "^\\d+$";

		if (frmMain.first.value=="")
		{
			alert("You must enter your First Name!")
			frmMain.first.focus();
			return false;
		}

		if (frmMain.last.value=="")
		{
			alert("You must enter your Last Name!")
			frmMain.last.focus();
			return false;
		}

		if (frmMain.state.value=="")
		{
			alert("You must choose a state!")
			frmMain.state.focus();
			return false;
		}

		if (frmMain.txtAmmountOwed.value=="")
		{
			alert("You must enter amount!")
			frmMain.txtAmmountOwed.focus();
			return false;
		}
		if (!frmMain.txtAmmountOwed.value.match(intMatch))
		{
			alert("Amount format is not correct!")
			frmMain.txtAmmountOwed.focus();
			return false;
		}
		if (frmMain.txtAmmountOwed.value<10000)
		{
			alert("You must enter amount greater then 10000!")
			frmMain.txtAmmountOwed.focus();
			return false;
		}

		if (proveriTelefon(frmMain.txtHomePhone1,frmMain.txtHomePhone2,frmMain.txtHomePhone3))
		{
			return true;
		}
		else
		{
			if (proveriTelefon(frmMain.txtWorkPhone1,frmMain.txtWorkPhone2,frmMain.txtWorkPhone3))
			{
				return true;
			}
			else
			{
				alert("Phone format is not correct!");
				return false;
			}
		}
		return true;
	}



	function proveriTelefon(T1, T2, T3)
	{
		var intMatch = "^\\d+$";
		if (T1.value.charAt(0)=="1" || T1.value.length!=3 || !T1.value.match(intMatch))
		{
			//T1.focus();
			return false;
		}
		if (T2.value.charAt(0)=="1" || T2.value=="555" || T2.value.length!=3 || !T2.value.match(intMatch))
		{
			//T2.focus();
			return false;
		}
		if (T3.value.length!=4 || !T3.value.match(intMatch))
		{
			//T3.focus();
			return false;
		}
		
		return true;
	}

	function srediOba()
	{
		var prosao = true;
		prosao = emailCheck(frmMain.email.value);
		if (prosao) {prosao = proveriFormu();}
		if (prosao) {frmMain.submit();}
	}