$(document).ready(function() {
	loadImg();
	imgHover();	
});

function loadImg(){			
	var img_1 = new Image();
	img_1.src = "img/nav/facebook_on.png";
	var img_2 = new Image();
	img_2.src = "img/nav/twitter_on.png";
	
	/*var img_3 = new Image();
	img_3.src = "img/nav/de_on.gif";
	var img_4 = new Image();
	img_4.src = "img/nav/es_on.gif";
	var img_5 = new Image();
	img_5.src = "img/nav/en_on.gif";*/
}
function imgHover(){
  	$(".rollover img").hover(
 	function(){
  		this.src = this.src.replace("_off","_on");
 	},
 	function(){
 		this.src = this.src.replace("_on","_off");
 	}
	);
}