function Highlight(val)
	{
		var index = val;
		reset_menus();
		var myId = "button" + index.toString();
		
		
		//document.getElementById(myId).style.bgcolor = "FFFF99";
		//document.getElementById(myId).style.color = "000000";
		
		if(val == 2 || val == 4 || val == 5 || val == 6)
		{
			Show_menu(val);
		} 
	}
	
	function Show_menu(val)
	{
		var index = val;
		var myId = "menu" + index.toString();
		
		document.getElementById(myId).style.visibility = "visible";
	}
	
	function Hide_menu(val)
	{
		var index = val;
		var myId2 = "menu" + index.toString();
		
		if(val == 2 || val == 4 || val == 5 || val == 6)
		{
			document.getElementById(myId2).style.visibility = "hidden";
		} 
		
	}
	
	function reset_menus()
	{
		var i;
		
		for(i=0; i<7; i++)
		{		Hide_menu(i);
		}
	}
	
	function Over_item(val)
	{
		var index = val;
		var myId = "list" + index.toString();
		document.getElementById(myId).style.backgroundColor = "#FFFF99";
		
	}
	
	function Not_over_item(val)
	{
		var index = val;
		var myId = "list" + index.toString();
		document.getElementById(myId).style.backgroundColor = "#003366";
	
	}
	
	var index = 0;
	
	var pic_array = [
			"heart_lipes.jpg",
			"jeff2.jpg",
			"dan_shapes2.jpg",
			"triangle_chamber.jpg",
			"red_lipes.jpg",
			"array.jpg",
			"jeff_full.jpg",
			"green_lipes.jpg",
			"uchannels2.jpg",
			"h_channel.jpg",
			"plate_spin_coat.jpg",
			"array_2.jpg"
	];
		
	var cap_array = [
			
	];


	function Change_picture(val, incr)
	{
		// function just adds the parameter val to the current index
		// and sets the picture and the caption to the new values as 
		// specified in the above arrays	
		var prevIndex = index;
		
		if(incr == 1)
		{
			index = index + val;
		}
		else
		{
			index = val;
		}
		
		// allow wrapping to occur on both ends
		
		if(index >= pic_array.length)
		{
			index = 0;
		}
		if(index < 0)
		{
			index = pic_array.length - 1;
		}
		
		var myId = "small" + index.toString();
		var myId2 = "small" + prevIndex.toString();
		
		if(document.getElementById)
		{
			document.getElementById("pic").src = "../pics/" + pic_array[index];
	
			document.getElementById(myId2).style.border = "1px solid #666666";	
			document.getElementById(myId).style.border = "2px solid #00CCFF";
			
		//	document.getElementById("caption").innerHTML = "<span class=\"cap\" id=\"caption\">" + cap_array[index] + "</span>\n";
		}
		else
		{
			document.all["pic"].src = "../pics/" + pic_array[index];
			//document.all["caption"].innerHTML = "<span class=\"cap\" id=\"caption\">" + cap_array[index] + "</span>\n";
			
			for(i=0; i<pic_array.length; i++)
			{
				myId2 = "small" + i.toString();
				document.all[myId2].style.border = "1px solid #666666";
			}
			document.all[myId].style.border = "2px solid #FFFF99";
		}
	}
	
	
	
	
	
	
	var kindex = 0;

	var pic_array2 = [
			"cells.jpg",
			"LBC/sunset_3.jpg",
			"uchannels.jpg",
			"arr5.jpg",
			"ryanpic3.jpg",
			"lines2.jpg",
			"green_lipes2.jpg",
			"LBC/dan_sohiel_2.jpg",
			"triangle_chamber4.jpg",
			"dan_shapes.jpg",
			"tom4.jpg",
			"h_channel2.jpg",
			"new_buildling3.jpg" 
			
	];

	function Change_picture2(change)
	{
		var i, lindex, elex;
		
		
		kindex += change;
	
		if(kindex >= pic_array2.length)
		{
			kindex = 0;
		}
		if(kindex < 0)
		{
			kindex = pic_array2.length - 1;
		}
		
		
			
			
		if(document.getElementById)
		{		
			lindex = kindex % pic_array2.length;
			document.getElementById("pic1").src = "pics/" + pic_array2[lindex];
			lindex = (kindex + 1) % pic_array2.length;
			document.getElementById("pic2").src = "pics/" + pic_array2[lindex];
			lindex = (kindex + 2) % pic_array2.length;
			document.getElementById("pic3").src = "pics/" + pic_array2[lindex];
			lindex = (kindex + 3) % pic_array2.length;
			document.getElementById("pic4").src = "pics/" + pic_array2[lindex];
			lindex = (kindex + 4) % pic_array2.length;
			document.getElementById("pic5").src = "pics/" + pic_array2[lindex];
		}
		else
		{	
			lindex = kindex % pic_array2.length;	
			document.all["pic1"].src = "pics/" + pic_array2[lindex];
			lindex = (kindex + 1) % pic_array2.length;
			document.all["pic2"].src = "pics/" + pic_array2[lindex];
			lindex = (kindex + 2) % pic_array2.length;
			document.all["pic3"].src = "pics/" + pic_array2[lindex];
			lindex = (kindex + 3) % pic_array2.length;
			document.all["pic4"].src = "pics/" + pic_array2[lindex];
			lindex = (kindex + 4) % pic_array2.length;
			document.all["pic5"].src = "pics/" + pic_array2[lindex];	
		}
		
	}
	
	
	function Change_xpic(myid, elem)
	{
		if(document.getElementById)
		{
			document.getElementById(myid).src = elem;
		}
		else
		{
			document.all[myid].src = elem;
		}
			
	}
	
	function Change_pointer(val)
	{
		document.body.style.cursor = val;
	}
	
	function Old_pic(elem)
	{
		if(document.getElementById)
		{
			document.getElementById(elem).src = "pics/" + elem + ".jpg";
		}
		else
		{
			document.all[elem].src = "pics/" + elem + ".jpg";
		}
	}
	
	function Change_Style_Sheet(which_sheet)
	{
		var len = document.styleSheets.length;
		
		for(i=0; i<len; i++)
		{
			if(i != which_sheet)
			{
				document.styleSheets[i].disabled = true;
			}
			else
			{
				document.styleSheets[i].disabled = false;
				if(i==0)
				{
					document.getElementById("banner").src = "pics/bml.jpg";
					document.getElementById("group").src = "pics/mgroup.jpg";
				}
				if(i==1)
				{
					document.getElementById("banner").src = "pics/bml_green.jpg";
					document.getElementById("group").src = "pics/mgroup_green.jpg";
				}
				if(i==2)
				{
					document.getElementById("banner").src = "pics/bml_orange.jpg";
					document.getElementById("group").src = "pics/mgroup_orange.jpg";
				}
				if(i==3)
				{
					document.getElementById("banner").src = "pics/bml_black.jpg";
					document.getElementById("group").src = "pics/mgroup_black.jpg";
				}
				if(i==4)
				{
					document.getElementById("banner").src = "pics/bml.jpg";
					document.getElementById("group").src = "pics/mgroup.jpg";
				}
			}
		}
	}