var imgname = new Array("nav_home","nav_aboutus","nav_services","nav_projects","nav_testimonials","nav_jobseekers","nav_employers","nav_news","nav_events","nav_knowledge","nav_locations","nav_contactus","nav_sitemap");

var on_img  = new Array();

var off_img = new Array();


for (i in imgname){
   
	on_img[i] = new Image();
  
	off_img[i] = new Image();
   
	on_img[i].src = "/images/" + imgname[i] +  "_on.gif";
  
	off_img[i].src = "/images/" + imgname[i] + "_off.gif";

	}



function changeImg(NUMBER, FLAG){
    
	OnOrOff = (FLAG) ? on_img : off_img;
    document.images["N" + NUMBER].src = OnOrOff[NUMBER].src;

	}