y_rand = 0;

	 function openlayer(x_rand, layername)
     {  
	  layer_on(x_rand, y_rand, layername);
	  }
			
	 function closelayer(layername)
     {  
	  //layer_off(layername);
		window.document.getElementById(layername).style.visibility = 'hidden';
		//window.document.getElementById(layername).style.display = 'none';
	}

innerhalb ='';
innerhalb_b='';
var active_layer;

// *********** anzeige eines layers
function layer_on(x,y,layer)
	{

		var div_object = eval("document.getElementById( '"+layer+"' )");
			div_object.style.top = y;
			//div_object.style.display = '';
			div_object.style.visibility = 'visible';
	
 }

	
// *********** ausblenden eines layers
function layer_off(layer)
 {
	if(!innerhalb_b)
	{
				var div_object = eval("document.getElementById( '"+layer+"' )");
				div_object.style.display = 'none';
	}
 }

// *********** ausblenden eines layers mit zeitverzoegerung
function go_off(layer)
 {
 	active_layer = '';
	setTimeout('layer_off(\'' +layer+'\')',0);
 }