<!-- 
if (document.getElementById) { window.onload = swap };
function swap() {
var numimages=7;
rndimg = new Array("../images/bg/bg-header1.jpg", "../images/bg/bg-header2_en.jpg", "../images/bg/bg-header3.jpg", "../images/bg/bg-header4.jpg" , "../images/bg/bg-header5.jpg" , "../images/bg/bg-header6.jpg" , "../images/bg/bg-header7.jpg"); 
x=(Math.floor(Math.random()*numimages));
randomimage=(rndimg[x]);
document.getElementById("header").style.backgroundImage = "url("+ randomimage +")"; 
}
//--> 
<!--
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}
	
<!--


//-->