if (top != self)
 { top.location = location;
 }

self.name="main"


function swapImages()
{
   var num=Math.random()*4; 
   if (num < 1 )
   {
      document.images["btw"].src=i1.src;
   }
   else if ( num < 2 )
   {  
      document.images["btw"].src=i2.src;
   }
   else if ( num < 3 )
   {  
      document.images["btw"].src=i3.src;
   }
   else if ( num < 4 )
   {  
      document.images["btw"].src=i4.src; 
   }
}

var i1 = new Image();
i1.src="https://secure.sitesell.com/img/backtowork222.jpg";
var i2 = new Image();
i2.src="https://secure.sitesell.com/img/backtowork333.jpg";
var i3 = new Image();
i3.src="https://secure.sitesell.com/img/backtowork444.jpg";
var i4 = new Image();
i4.src="https://secure.sitesell.com/img/backtowork555.jpg";