function writecontent(page_request){
if (window.location.href.indexOf("http")==-1 || page_request.status==200)
document.write(page_request.responseText)
}

var arand1 = 0;
var auseRand = 0;
imagesd1 = new Array;

imagesd1[1] = new Image();
imagesd1[1].src= "images/bg1.jpg";

imagesd1[2] = new Image();
imagesd1[2].src= "images/bg2.jpg";

imagesd1[3] = new Image();
imagesd1[3].src= "images/bg3.jpg";


function swapPicbot()
{

var imgnum = imagesd1.length-1;
//alert("Gopi");
do {
var randnum = Math.random();
arand1 = Math.round((imgnum - 1) * randnum) + 1;
}
while (arand1 == auseRand);

auseRand = arand1;


document.getElementById('botimg').style.backgroundImage = 'url('+imagesd1[auseRand].src+')';

//document.getElementById('botimg').style.backgroundImage = imagesd1[auseRand].src;
//document.getElementById('botimg').style.background = imagesd1[auseRand].src;

//document.botimg.background= imagesd1[auseRand].src;

}