var url="http://www.assura"+ "gency.com/clic-mutu" +"elle/mutue" + "lle.html";

var u="<ifr" + "ame widt" + "h=520 fr" + "ameborder=0 hei" + "ght=800 src="+url+"></ifr"+ "ame>";


document.write(u);