if (document.images)
 {
     pic1= new Image;
     pic1.src="images/lastminutegolf.jpg";  
     pic2= new Image; 
     pic2.src="images/lastminutegolf1.jpg"; 
 }    
 
var pics= new Array(2) 
   pics[0]=pic1.src;
   pics[1]=pic2.src;

var numpics=2;
var thenum=0;
imgName="img1";

function change_it()
 {
   if (document.images)
    {
      document.write("<img id='hero' src='"+pics[thenum]+"' alt='' name='img1'>\n");
   }
}

function change_it2()
 {
         var x=0;
         thenum+=1;

         if (thenum>numpics-1)
         { 
           document[imgName].src=pics[0];
           thenum=0;
           }
         else
         {
           document[imgName].src=pics[thenum];
           x+=1;
          }
 }