function alertMsg(emailObj,errorID){
	$(emailObj).focus();
	alert(errMsg[200]);
}

function emailCheck (emailObj) {
var emailStr = emailObj.value;
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)

/*
var errMsg = new Array();
errMsg[200] = 'An email address seems incorrect - Please type or choose a valid email address.';
errMsg[201] = 'The username doesn\'t seem to be valid.';
errMsg[202] = 'Destination IP address is invalid!';
errMsg[203] = 'The domain name doesn\'t seem to be valid.';
errMsg[204] = 'The address must end in a three-letter domain, or two letter country.';
errMsg[205] = 'This address is missing a hostname!';
*/

if (matchArray==null) {
	alertMsg(emailObj,200);
	return false;
}
var user=matchArray[1]
var domain=matchArray[2]
if (user.match(userPat)==null) {
	alertMsg(emailObj,201);
	return false;
}
var IPArray=domain.match(ipDomainPat)
if (IPArray!=null) {
	  for (var i=1;i<=4;i++) {
	    if (IPArray[i]>255) {
	    	alertMsg(emailObj,202);
	    	return false;
	    }
    }
    return true
}
var domainArray=domain.match(domainPat)
if (domainArray==null) {
	alertMsg(emailObj,203);
	return false;
}
var atomPat=new RegExp(atom,"g")
var domArr=domain.match(atomPat)
var len=domArr.length
if (domArr[domArr.length-1].length<2 || 
    domArr[domArr.length-1].length>3) {
    	alertMsg(emailObj,204);
   	return false;
}
if (len<2) {
   alertMsg(emailObj,205);
   return false;
}

// If we've gotten this far, everything's valid!
/*
document.getElementById("target").innerHTML = "<p align=center><b><font face=Arial size=2 color=#3366CC>Please wait while we load your contacts.....</font></b></p>";
document.getElementById("notfound").innerHTML = "";
return true;
document.emailform.reset();*/
return true;
}