function openPop(destination,winname,scroll,winwidth,winheight) {
  satellite =  window.open(destination,winname,"locationbar=no,directories=no,status=no,menubar=no,resizable=no,scrollbars="+scroll+",copyhistory=no,width="+winwidth+",height="+winheight+"");
  satellite.moveTo(((screen.width/2)-(winwidth/2)),((screen.height/2)-(winheight/2)));
}


function change(name,quelle){
  window.status = "";
  document.images[name].src = quelle.src;
}


// preload images
pic_0			= new Image();
pic_0.src 		= "art/btn_nav_0_0.gif";
pic_0_hi 		= new Image();
pic_0_hi.src 		= "art/btn_nav_0_1.gif";
pic_1			= new Image();
pic_1.src 		= "art/btn_nav_1_0.gif";
pic_1_hi 		= new Image();
pic_1_hi.src 		= "art/btn_nav_1_1.gif";
pic_2			= new Image();
pic_2.src 		= "art/btn_nav_2_0.gif";
pic_2_hi 		= new Image();
pic_2_hi.src 		= "art/btn_nav_2_1.gif";
pic_3			= new Image();
pic_3.src 		= "art/btn_nav_3_0.gif";
pic_3_hi 		= new Image();
pic_3_hi.src 		= "art/btn_nav_3_1.gif";
pic_4			= new Image();
pic_4.src 		= "art/btn_nav_4_0.gif";
pic_4_hi 		= new Image();
pic_4_hi.src 		= "art/btn_nav_4_1.gif";

//beiträge
pic_0_0			= new Image();
pic_0_0.src 		= "art/btn_nav_0_0_0.gif";
pic_0_0_hi 		= new Image();
pic_0_0_hi.src 		= "art/btn_nav_0_0_1.gif";
pic_0_1			= new Image();
pic_0_1.src 		= "art/btn_nav_0_1_0.gif";
pic_0_1_hi 		= new Image();
pic_0_1_hi.src 		= "art/btn_nav_0_1_1.gif";
pic_0_2			= new Image();
pic_0_2.src 		= "art/btn_nav_0_2_0.gif";
pic_0_2_hi 		= new Image();
pic_0_2_hi.src 		= "art/btn_nav_0_2_1.gif";

//anzeigen
pic_1_0			= new Image();
pic_1_0.src 		= "art/btn_nav_1_0_0.gif";
pic_1_0_hi 		= new Image();
pic_1_0_hi.src 		= "art/btn_nav_1_0_1.gif";
pic_1_1			= new Image();
pic_1_1.src 		= "art/btn_nav_1_1_0.gif";
pic_1_1_hi 		= new Image();
pic_1_1_hi.src 		= "art/btn_nav_1_1_1.gif";
pic_1_2			= new Image();
pic_1_2.src 		= "art/btn_nav_1_2_0.gif";
pic_1_2_hi 		= new Image();
pic_1_2_hi.src 		= "art/btn_nav_1_2_1.gif";
pic_1_3			= new Image();
pic_1_3.src 		= "art/btn_nav_1_3_0.gif";
pic_1_3_hi 		= new Image();
pic_1_3_hi.src 		= "art/btn_nav_1_3_1.gif";


//redaktion		
pic_2_0			= new Image();
pic_2_0.src 		= "art/btn_nav_2_0_0.gif";
pic_2_0_hi 		= new Image();
pic_2_0_hi.src 		= "art/btn_nav_2_0_1.gif";		
pic_2_1			= new Image();
pic_2_1.src 		= "art/btn_nav_2_1_0.gif";
pic_2_1_hi 		= new Image();
pic_2_1_hi.src 		= "art/btn_nav_2_1_1.gif";
pic_2_2			= new Image();
pic_2_2.src 		= "art/btn_nav_2_2_0.gif";
pic_2_2_hi 		= new Image();
pic_2_2_hi.src 		= "art/btn_nav_2_2_1.gif";