function showimg(id)
	{
		try
			{
				/* Set new Vars */
				var newSource = document.getElementById(id).src;
				var newWidth = document.getElementById(id).width;
				var newHeight = document.getElementById(id).height;
				/* Set positionin to the middle of the frame */
				var left = ((315 - newWidth)/2);
				var top = ((237 - newHeight)/2);
				/* Reset Source */
				document.getElementById("viewImage").src = "";				
				/* Apply Positioning and Image Source */
				document.getElementById("viewImage").setAttribute("style","position: relative; top:"+top+"px; left:"+left+"px;");
				document.getElementById('viewImage').src =  newSource;
				/* Set the Captions */
				var desc_id = id+"_description";				
				document.getElementById("main_description").innerHTML = document.getElementById(desc_id).value;
			}
		catch(err){alert(err);}
	}
function nextPage()
	{
		document.getElementById("lastBtn").className = "black_a_sml";
		var colMax = document.getElementById("colMax").value;		
		
		var firstCol = "col_"+document.getElementById("firstCol").value;
		document.getElementById(firstCol).className = "no_display";
		
		document.getElementById("lastCol").value = ((document.getElementById("lastCol").value/1) + 1);
		document.getElementById("firstCol").value = ((document.getElementById("firstCol").value/1) + 1);
		
		var lastCol = "col_"+document.getElementById("lastCol").value;
		document.getElementById(lastCol).className = "gallery_images";
		
		if(document.getElementById("lastCol").value == colMax){document.getElementById("nextBtn").className = "no_display";}
		
	}
	
function lastPage()
	{
		document.getElementById("nextBtn").className = "black_a_sml";
		
		var lastCol = "col_"+document.getElementById("lastCol").value;	
		document.getElementById(lastCol).className ="no_display";
		
		document.getElementById("lastCol").value = ((document.getElementById("lastCol").value/1) - 1);
		document.getElementById("firstCol").value = ((document.getElementById("firstCol").value/1) - 1);
		
		var firstCol = "col_"+document.getElementById("firstCol").value;	
		document.getElementById(firstCol).className = "gallery_images"; 
		
		if(document.getElementById("firstCol").value == 1){document.getElementById("lastBtn").className = "no_display";}
	}