function chooseimage(){
	var mess = new Array('go_green.jpg','go_green01.jpg');
   var max = mess.length;
   var num = Math.floor((Math.random() * max));
	var imgname = mess[num];
   var usemapval;
   if(imgname == 'go_green.jpg'){
      usemapval = '#Map';
   }
   if(imgname == 'go_green01.jpg'){
      usemapval = '#Map2';
   }
   document.getElementById('img1').src = 'http://www.softprodigy.com/splashpage/images/'+imgname;
   document.getElementById('img1').usemap = usemapval;
   //alert(document.getElementById('img1').src);
   if(document.getElementById('img1').src){
  			setTimeout("disablePopup()", 20000);
   }
   }