function hideALL() { 
			document.getElementById("main").style.display = "none";
			document.getElementById("01").style.display = "none";
			document.getElementById("02").style.display = "none";
			document.getElementById("03").style.display = "none";
			document.getElementById("04").style.display = "none";
			document.getElementById("05").style.display = "none";
			document.getElementById("06").style.display = "none";
			document.getElementById("07").style.display = "none";
			document.getElementById("08").style.display = "none";
			document.getElementById("09").style.display = "none";
			document.getElementById("10").style.display = "none";
			document.getElementById("11").style.display = "none";
			document.getElementById("12").style.display = "none";
			document.getElementById("13").style.display = "none";
			document.getElementById("14").style.display = "none";
			document.getElementById("15").style.display = "none";		
			document.getElementById("16").style.display = "none";
			
			}
			
function showbacktomain() { 

			hideALL();
			document.getElementById("backtomain").style.display = "block";
			}
function showmain() { 

			hideALL();
			document.getElementById("main").style.display = "block";	
			document.getElementById("backtomain").style.display = "none";
			}		
function showPic (whichpic) { 

			hideALL();
	document.getElementById(whichpic).style.display = "block";
			document.getElementById("backtomain").style.display = "block";
}

 function fnnumberofimages() { 
  if (Numberofimages > 1) {
			document.getElementById('thumb02').style.display = "block";
			}
  if (Numberofimages > 2) {
			document.getElementById('thumb03').style.display = "block";
			}
  if (Numberofimages > 3) {
			document.getElementById('thumb04').style.display = "block";
			}
  if (Numberofimages > 4) {
			document.getElementById('thumb05').style.display = "block";
			}
  if (Numberofimages > 5) {
			document.getElementById('thumb06').style.display = "block";
			}
  if (Numberofimages > 6) {
			document.getElementById('thumb07').style.display = "block";
			}
  if (Numberofimages > 7) {
			document.getElementById('thumb08').style.display = "block";
			}
  if (Numberofimages > 8) {
			document.getElementById('thumb09').style.display = "block";
			}
  if (Numberofimages > 9) {
			document.getElementById('thumb10').style.display = "block";
			}
  if (Numberofimages > 10) {
			document.getElementById('thumb11').style.display = "block";
			}
  if (Numberofimages > 11) {
			document.getElementById('thumb12').style.display = "block";
			}
  if (Numberofimages > 12) {
			document.getElementById('thumb13').style.display = "block";
			}
  if (Numberofimages > 13) {
			document.getElementById('thumb14').style.display = "block";
			}
  if (Numberofimages > 14) {
			document.getElementById('thumb15').style.display = "block";
			}
  if (Numberofimages > 15) {
			document.getElementById('thumb16').style.display = "block";
			}
 }