var revert = new Array();
	var inames = new Array('about', 'portfolio', 'contact', 'shop', 'submit');

	// Preload
	if (document.images) {
  		var flipped = new Array();
  		for(i=0; i< inames.length; i++) {
    		flipped[i] = new Image();
    		flipped[i].src = "images/"+inames[i]+"Over.png";
  		}
	}

	function over(num) {
  		if(document.images) {
    		revert[num] = document.images[inames[num]].src;
    		document.images[inames[num]].src = flipped[num].src;
  		}
	}
	function out(num) {
  		if(document.images) document.images[inames[num]].src = revert[num];
	}