function randback()
{
   pic1="../images/fhfbg2.jpg"
   pic2="../images/fhfbg3.jpg"  
   pic3="../images/fhfbg4.jpg"
   pic4="../images/fhfbg5.jpg"
   
   now=new Date()
   rand=(now.getSeconds() )%4   
   rand=rand+1
   if (rand == 1)  {

	   	document.body.background = pic1 } 
    if (rand == 2)  { 
 
	      document.body.background = pic2 }  
    if (rand == 3)  { 
 
	      document.body.background = pic3 }
    if (rand == 4)  { 
 
	      document.body.background = pic4 }
}