//var nav_pic = "home";
var layer_timer = null;
//var img_timer = null;
var akt_layer = "";
var akt_img = "";


function change_img(insert,mode)
{

	if (sBrowserType != "OLD")
	{
		if (sBrowserType == "DOM")
		{
			var pic = document.getElementById(insert);
		}       
		else if (sBrowserType == "NSLAYER")
		{
			var pic = eval("document." + insert);
		}
		else 
		{
			var pic = eval("document." + insert);     
		}
	
		pic.src = path + insert + "_" + mode + "." + format;


			if (akt_img != insert && akt_img != "" && mode == "o")
			{
				
				change_img_last();
			}

		
		if (mode == "o")
		{
			akt_img = insert;
		}
	}

}

function change_img_last()
{
	if (sBrowserType != "OLD")
	{
		if (akt_img != "" )
		{
			if (sBrowserType == "DOM")
			{
				var pic2 = document.getElementById(akt_img);
			}       
			else if (sBrowserType == "NSLAYER")
			{
				var pic2 = eval("document." + akt_img);
			}
			else 
			{
				var pic2 = eval("document." + akt_img);     
			}
			pic2.src = path + akt_img + "_" + normal + "." + format;
		}
	}		
}

/*
function ly_change_img(layer,insert,mode)
{
	if (sBrowserType != "OLD")
	{
		if (sBrowserType == "DOM")
		{
			var pic = document.getElementById(insert);
		}       
		else if (sBrowserType == "NSLAYER")
		{
			var pic = eval("document.ly" + layer + ".document." + insert);
		}
		else 
		{
			var pic = eval("document.all.ly" + layer + ".document." + insert);     
		}
	
		pic.src = path + insert + "_" + mode + "." + format;

			if (akt_img != insert && akt_img != "" && mode == "o")
			{
				
				ly_change_img_last(layer);
			}

		
		if (mode == "o")
		{
			akt_img = insert;
		}
	}
}

function ly_change_img_last(layer)
{
	if (sBrowserType != "OLD")
	{
		if (akt_img != "" )
		{
			if (sBrowserType == "DOM")
			{
				var pic2 = document.getElementById(akt_img);
			}       
			else if (sBrowserType == "NSLAYER")
			{
				var pic2 = eval("document.ly" + layer + ".document." + akt_img);
			}
			else 
			{
				var pic2 = eval("document.all.ly" + layer + ".document." + akt_img);     
			}
			pic2.src = path + akt_img + "_" + normal + "." + format;
		}
	}		
}
*/

function ly_change_img2(layer,insert,mode)
{
	if (sBrowserType != "OLD")
	{
		if (sBrowserType == "DOM")
		{
			var pic = document.getElementById(insert);
		}       
		else if (sBrowserType == "NSLAYER")
		{
			var pic = eval("document.ly" + layer + ".document." + insert);
		}
		else 
		{
			var pic = eval("document.all.ly" + layer + ".document." + insert);     
		}
	
		pic.src = path + insert + "_" + mode + "." + format;
	
	
		if(mode == "o")
		{
	
			show_layer(layer);
		}
		else
		{
			close_layer_timeout(layer);
		}
	}		
}


function show_layer(layer)
{
	if (sBrowserType != "OLD")
	{
		if (sBrowserType == "DOM")
		{
			var ly = document.getElementById("ly" + layer).style;
		}   
		else if (sBrowserType == "NSLAYER")
		{
			var ly = eval("document.ly" + layer);
		}
		else 
		{
			var ly = eval("document.all.ly" + layer + ".style");   
		}
		
		clearTimeout(layer_timer);
		ly.visibility = "visible";
	
			if (akt_layer != layer && akt_layer != "")
			{
				if (sBrowserType == "DOM")
				{
					var ly2 = document.getElementById("ly" + akt_layer).style;
				}   
				else if (sBrowserType == "NSLAYER")
				{
					var ly2 = eval("document.ly" + akt_layer);
				}
				else 
				{
					var ly2 = eval("document.all.ly" + akt_layer + ".style");   
				}		
			
				ly2.visibility = "hidden";	
			}
		
		akt_layer = layer;
	}	
}

function close_layer(layer)
{
	if (sBrowserType != "OLD")
	{
		if (sBrowserType == "DOM")
		{
			var ly = document.getElementById("ly" + layer).style;
		}   
		else if (sBrowserType == "NSLAYER")
		{
			var ly = eval("document.ly" + layer);
		}
		else 
		{
			var ly = eval("document.all.ly" + layer + ".style");   
		}
		
		ly.visibility = "hidden";
		akt_layer = "";
	}
}

function close_layer_pic(layer)
{
	if (sBrowserType != "OLD")
	{
		if (akt_img != "")
		{
			if (sBrowserType == "DOM")
			{
				var pic = document.getElementById(akt_img);
			}       
			else if (sBrowserType == "NSLAYER")
			{
				var pic = eval("document." + akt_img);
			}
			else 
			{
				var pic = eval("document." + akt_img);     
			}
			pic.src = path + akt_img + "_" + normal + "." + format;
		}
		close_layer(layer);
		akt_img = "";
	}
}

function close_layer_timeout(layer)
{
	layer2 = layer;
	layer_timer = setTimeout("close_layer_pic(layer2)", 250);
}


function close_last_layer()
{
	if(akt_layer != "")
	{
		clearTimeout(layer_timer);
		close_layer(akt_layer);
	}
}