function check_node(){
	for (i=0 ; i < 13 ; i++){
		if(GetCookie("node" + i) != null){
			switchview("node" + i);
		}
	}
}



				if (document.layers)  {
	     				netscape = 1; iexplorer = 0;
				} else {
	     				netscape = 0; iexplorer = 1;
	     	}
	     			
	 			function show(layer)
	 			{
					layer.display = "inline";
				}
	    			
				function hide(layer)
	 			{
					if (netscape) layer.display = "none";
					if (iexplorer) layer.display = "none";
				}
	    			
				function switchview(layername)
				{
					layer = eval(layername);
					if (netscape) layerobj = document.layer;
					if (iexplorer) layerobj = layer.style;
					if (layerobj.display == "inline")
					{
	  					hide(layerobj);
						document.images['img'+layername].src = "/design/file.png";
						DeleteCookie(layername);
					} else {
						show(layerobj);
						document.images['img'+layername].src = "/design/file.png";
						SetCookie(layername, layername);
	   			}
				}