function displaypicsRollBlock(the_picsRollBlock, picBlock){
  	 if (document.getElementById(the_picsRollBlock).style.display==""){
	   	document.getElementById('picsBlock').className = "noshade";
	   document.getElementById(the_picsRollBlock).style.display = "none";return
 	 }
  for (i=0;i<picsRollBlock_array.length;i++){
	   var my_picsRollBlock = document.getElementById(picsRollBlock_array[i]);
	   my_picsRollBlock.style.display = "none";
	 }
  document.getElementById(the_picsRollBlock).style.display = "";
  
  if (picBlock == 'shade') {
  	document.getElementById('picsBlock').className = "shade";
  } else {
  	document.getElementById('picsBlock').className = "noshade";
  }
  

  
}