var imageArray1 = new Array("static/school-ch-1.jpg","static/school-ch-2.jpg","static/school-ch-3.jpg",
  			"static/school-ch-4.jpg","static/school-ch-5.jpg","static/school-ch-6.jpg");

  var imageArray2 = new Array("static/school-ch-7.jpg","static/school-ch-8.jpg","static/school-ch-18.jpg",
  			"static/school-ch-10.jpg","static/school-ch-11.jpg","static/school-ch-12.jpg");

  var id = 0;  
  var first=0;
  function RotateImages() {
  	if (id == imageArray1.length)
  		id = 0;
  	if (document.getElementById("Rotating1") != null && first==0) {
		document.getElementById("Rotating1").src=imageArray1[id]; 
		document.getElementById("link1").href=imageArray1[id]; 
	}
	if (document.getElementById("Rotating2") != null && first==1) {
		document.getElementById("Rotating2").src=imageArray2[id];  		
		document.getElementById("link2").href=imageArray2[id]; 
	}
	if (first==0) first = 1
	else first = 0;
	
  	id++;
	setTimeout("RotateImages()", 4000);
  }