//navigation
var inames = new Array('home','epk','about','music','contact');
var revert = new Array();

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

function _b(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];
	}