// JavaScript Document
userAgent = window.navigator.userAgent;
browserVers = parseInt(userAgent.charAt(userAgent.indexOf("/")+1),10);
function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function findElement(n,ly) {
	if (browserVers < 4)		return document[n];
	var curDoc = ly ? ly.document : document;
	var elem = curDoc[n];
	if (!elem) {
		for (var i=0;i<curDoc.layers.length;i++) {
			elem = findElement(n,curDoc.layers[i]);
			if (elem) return elem;
		}
	}
	return elem;
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		var img;
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			img = null;
			if (document.layers) {
				img = findElement(changeImages.arguments[i],0);
			}
			else {
				img = document.images[changeImages.arguments[i]];
			}
			if (img) {
				img.src = changeImages.arguments[i+1];
			}
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		btn_home_site_over = newImage("images/btn_home_site_over.jpg");
		btn_our_focus_over = newImage("images/btn_our_focus_over.jpg");
		btn_job_seekers_over = newImage("images/btn_job_seekers_over.jpg");
		btn_for_companies_over = newImage("images/btn_for_companies_over.jpg");
		btn_contact_us_over = newImage("images/btn_contact_us_over.jpg");
		preloadFlag = true;
	}
}


// Form Verification
function validateEmail(field) {
   //Validating the email field
   var re = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
   if (! field.value.match(re)) {
       field.focus();
       field.select();
       return false;
   }
   return true;
}

function validateText(field) {
  if (field.value == "") {
    return false;  
  }
  return true;
}