function changeBanner(){

var obj1 = document.getElementById("banner3");

var anch1 = document.getElementById("banner3Anch");

try{

var imagesArray1 = new Array();
for(var i=0; i<5; i++)
{imagesArray1[i] = "/images/banner-3/mk-" + i + ".jpg";}
var randomnumber1=Math.floor(Math.random()*5);
obj1.src = imagesArray1[randomnumber1];


var anchorArray1 = new Array();
anchorArray1[0] = "/products/premium.html";
anchorArray1[1] = "/masterkey/therightoption.html";
anchorArray1[2] = "/masterkey/websolutions.html";
anchorArray1[3] = "http://twitter.com/gomasterkey";
anchorArray1[4] = "/products/masterplan.html";
anch1.href = anchorArray1[randomnumber1];
}
catch(err){}
try{
var obj2 = document.getElementById("banner4");
var imagesArray2 = new Array();
for(var i=0; i<4; i++)
{imagesArray2[i] = "/images/banner-4/mk-" + i + ".jpg";}
var randomnumber2=Math.floor(Math.random()*4);
obj2.src = imagesArray2[randomnumber2];

var anch2 = document.getElementById("banner4Anch");

var anchorArray2 = new Array();
anchorArray2[0] = "/contactus/index2.aspx";
anchorArray2[1] = "/newsletter/index.aspx";
anchorArray2[2] = "/partners/index.html";
anchorArray2[3] = "http://www.facebook.com/pages/Dubai/Masterkey-Systems/109680153184";
anch2.href=anchorArray2[randomnumber2];
}
catch(err){}


}