function chkFiles(){
frmupload.btnsubmit.disabled = true;
var file = frmupload.my_file.value;
var filext = file.substr(file.length-3);
var offset = file.lastIndexOf ("\\") + 1;
var fileName = file.substr(offset);
var strFName = frmupload.txtfname.value;
var strLName = frmupload.txtlname.value;
var strEmail = frmupload.txtemail.value;
var strJobRef = frmupload.txtjobref.value;
var strEmpType = frmupload.ResumesEmployTypeCat.value;
var strEmpCat = frmupload.ResumesEmployCategory.value;
var errList = '';
var errFName = 'You must enter a First Name\n';
var errLName = 'You must enter a Last Name\n';
var errEmail = 'You must enter a valid Email Address\n';
var errJobRef = 'You must enter a Job Reference\n';
var errEmpType = 'You must select an Employment Type\n';
var errEmpCat = 'You must select an Employment Category\n';
var errResume = 'You have not selected a resume file to upload\n';
var arrForbidden = new Array("dll", "exe", "vbs", "ini", "wsf", "asp", "bat");
var blnFileErr = false;

	if (strFName == ''){
		errList += errFName;
		frmupload.txtfname.focus();
	}
	
	if (strLName == ''){
		if (errList == ''){
			frmupload.txtlname.focus();
		}
		errList += errLName;
	}
	
	if (strEmail == '' || !emailCheck(strEmail)){
		if (errList == ''){
			frmupload.txtemail.focus();
		}
		errList += errEmail;
	}
	
//	if (strJobRef == ''){
//		if (errList == ''){
//			frmupload.txtjobref.focus();
//		}
//		errList += errJobRef;
//	}
	
	if (strEmpType == ''){
		if (errList == ''){
			frmupload.ResumesEmployTypeCat.focus();
		}
		errList += errEmpType;
	}

	if (strEmpCat == ''){
		if (errList == ''){
			frmupload.ResumesEmployCategory.focus();
		}
		errList += errEmpCat;
	}
	if (file == ''){
		if (errList == ''){
			frmupload.my_file.focus();
		}
		errList += errResume;
	}
	
	for (i=0; i<arrForbidden.length; i++){
		if (arrForbidden[i] == filext){
			blnFileErr = true;
			break;
		}
	}
	
	if (blnFileErr){
		errList += 'You may not upload a file with the extension \"' + filext + '\"\n'
	}

	if (errList == ''){
		frmupload.hdnfilename.value = fileName;
		return true;
	}else {
		frmupload.btnsubmit.disabled = false;
		alert(unescape(errList));
		return false;
	}
}

function emailCheck (emailStr) {

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]

	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 domainArray=domain.match(domainPat)
	if (domainArray==null) {
	    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) {
	   return false
	}

	if (len<2) {
	   return false
	}

return true;
}