var allPics;
var displayedPics=new Array();
setTimeout("startRotation();",500);


function startRotation(){
  allPics=document.getElementById("staticPics").childNodes;
	displayedPics[0]=Math.floor(Math.random()*(allPics.length-1));  	
	do {
	  displayedPics[1]=Math.floor(Math.random()*(allPics.length-1));  	
	} while(displayedPics[0]==displayedPics[1]);
	  
	do {
	  displayedPics[2]=Math.floor(Math.random()*(allPics.length-1));  	
	} while(displayedPics[0]==displayedPics[2] || displayedPics[1]==displayedPics[2]);
	
	allPics[displayedPics[0]].className='blockDisplay';
	allPics[displayedPics[1]].className='blockDisplay';
	allPics[displayedPics[2]].className='blockDisplay';
  setTimeout('rotationFurther()',4000);
}

function rotationFurther(){
  allPics[displayedPics[0]].className='noDisplay';  
  allPics[displayedPics[1]].className='noDisplay';  
  allPics[displayedPics[2]].className='noDisplay';  
    

	if(displayedPics[0]==(allPics.length-2))
		displayedPics[0]=0;
	else    
	  displayedPics[0]++;  	
	if(displayedPics[1]==(allPics.length-2))
		displayedPics[1]=0;
	else    
	  displayedPics[1]++;  	
	if(displayedPics[2]==(allPics.length-2))
		displayedPics[2]=0;
	else    
	  displayedPics[2]++;  	
  
	allPics[displayedPics[0]].className='blockDisplay';	
	allPics[displayedPics[1]].className='blockDisplay';		  
	allPics[displayedPics[2]].className='blockDisplay';   
  
	setTimeout('rotationFurther()',4000);
}