//	document.images['mainproductimage'].src="../../../images/tables/plastic/Black%20%With%20%Holes%20%Water%20%Cup.gif";
	
	function checklight(imageobject, opacity, id, litid,tagname){
		
		var checked = litid;
		var imageon = imageobject;
		//alert('io: ' + imageon.name + ' tn: ' + tagname);
		//if nothing checked then check light up the clicked object and set that as the checked_tag and checked glob
		if(window.checked_quant===undefined)
		{
			

			if(tagname=="Quantity")
			{
				checked_quant=litid;
				lightup(imageon,30);
				imageon.lit=true;
				checked_tag = tagname;
			}
		}
		else
		{
			if(checked_tag != "")
			{
				if(tagname=="Quantity")
				{
					lightup(imageon,30);
					imageon.lit=true;

					var imageoff = document.getElementById(checked_quant);
				
					lightup(imageoff,100);
					imageoff.lit=false;
					checked_quant=litid;
					checked_tag="";
				}
				
			}
			else {
				if(tagname=="Quantity")
				{
					var imageoff = document.getElementById(checked_quant);
					lightup(imageoff,100);
					imageoff.lit=false;
					checked_quant=litid;
				}
			}
		}
		
		
		
		if(window.checked_speaker===undefined)
		{
			if(tagname=="Speaker")
			{
				checked_speaker=litid;
				lightup(imageon,30);
				imageon.lit=true;
				checked_tag = tagname;
			}
		}
		else
		{
			if(checked_tag != "")
			{
				if(tagname=="Speaker")
				{
					lightup(imageon,30);
					imageon.lit=true;

					var imageoff = document.getElementById(checked_speaker);
				
					lightup(imageoff,100);
					imageoff.lit=false;
					checked_speaker=litid;
					checked_tag="";
				}
				
			}
			else {
				if(tagname=="Speaker")
				{
					var imageoff = document.getElementById(checked_speaker);
					lightup(imageoff,100);
					imageoff.lit=false;
					checked_speaker=litid;
				}
			}
		}
		
		
		
		
		
		
		
		
		
		
		if(window.checked_holes===undefined)
		{
		//alert("Holes 1:"+imageon.name);

			if(tagname=="Holes")
			{
				checked_holes=litid;
				//alert("Holes 2:"+imageon.name + " tn:"+tagname + " ch:" + checked_holes);
				lightup(imageon,30);
				imageon.lit=true;
				checked_tag = tagname;
			}
		}
		else
		{
			if(checked_holes != "")
			{
			//alert("Holes 3:"+imageon.name + " tn:"+tagname);

				if(tagname=="Holes")
				{
					//alert("Holes 4:"+imageon.name + " tn:"+tagname + " ch:" + checked_holes);

					lightup(imageon,30);
					imageon.lit=true;

					var imageoff = document.getElementById(checked_holes);
					lightup(imageoff,100);
					imageoff.lit=false;
					checked_holes=litid;
				}
			}
		}
		if(window.checked_leg===undefined)
		{
		//alert("Leg 1:"+imageon.name);

			if(tagname=="Color")
			{
				checked_leg=litid;
				//alert("Color 2:"+imageon.name + " tn:"+tagname + " ch:" + checked_leg);
				lightup(imageon,30);
				imageon.lit=true;

				checked_tag = tagname;
			}
		}
		else
		{
			if(checked_leg != ""){
				//alert("Color 3:"+imageon.name + " tn:"+tagname + " ch:" + checked_leg);

				if(tagname=="Color")
				{
					//alert("Holes 4:"+imageon.name + " tn:"+tagname + " ch:" + checked_leg);
					lightup(imageon,30);
					imageon.lit=true;
					var imageoff = document.getElementById(checked_leg);
					lightup(imageoff,100);
					imageoff.lit=false;
					checked_leg=litid;
				}
			}
		
		}
		if(window.checked_leg===undefined)
		{
		//alert("Leg 1:"+imageon.name);

			if(tagname=="Leg")
			{
				checked_leg=litid;
				//alert("Leg 2:"+imageon.name + " tn:"+tagname + " ch:" + checked_leg);
				lightup(imageon,30);
				imageon.lit=true;
				checked_tag = tagname;
			}
		}
		else
		{
			if(checked_leg != ""){
				//alert("Leg 3:"+imageon.name + " tn:"+tagname + " ch:" + checked_leg);

				if(tagname=="Leg")
				{
					//alert("Holes 4:"+imageon.name + " tn:"+tagname + " ch:" + checked_leg);
					lightup(imageon,30);
					imageon.lit=true;
					var imageoff = document.getElementById(checked_leg);
					lightup(imageoff,100);
					imageoff.lit=false;
					checked_leg=litid;
				}
			}
		
		}
		if(window.checked_graphic===undefined)
		{
			//alert("Logo 1:"+imageon.name);
			if(tagname=="Graphic")
			{
				checked_graphic=litid;
				lightup(imageon,30);
				imageon.lit=true;
				checked_tag = tagname;
			}
		}
		else
		{
			//alert("Logo 3:"+tagname);
			if(checked_graphic != ""){
				if(tagname=="Graphic")
				{
					//alert("Logo 4:"+imageon.name);
					lightup(imageon,30);
					imageon.lit=true;
					var imageoff = document.getElementById(checked_graphic);
					lightup(imageoff,100);
					imageoff.lit=false;
					checked_graphic=litid;
				}
			}
		}
	}
			
	function lightup(imageobject, opacity){
		browserdetect=navigator.appName;
		if(browserdetect=="Netscape"){ //safari will pass this test, but not the navigator.appName.indexOf test
			imageobject.style.opacity=opacity/100
			if (navigator.appName.indexOf("Netscape")!=-1 && parseInt(navigator.appVersion)>=5)
			{
				imageobject.style.MozOpacity=opacity/100;
			}
		}
		else if(browserdetect=="Microsoft Internet Explorer")
		{	
			if (navigator.appName.indexOf("Microsoft")!=-1 && parseInt(navigator.appVersion)>=4)
		
			{
				imageobject.style.filter="progid:DXImageTransform.Microsoft.Alpha(opacity=" + opacity + ")";
			}
		}
	}