var iconover = new Array(5);
iconover[1] = new Image ();
iconover[1].src =  "img/icon_strasse_kl_over.png";
iconover[2] = new Image ();
iconover[2].src =  "img/icon_schiene_kl_over.png";
iconover[3] = new Image ();
iconover[3].src =  "img/icon_wasser_kl_over.png";
iconover[4] = new Image ();
iconover[4].src =  "img/icon_luft_kl_over.png";
iconover[5] = new Image ();
iconover[5].src =  "img/icon_individuell_kl_over.png";

var iconout = new Array(5);
iconout[1] = new Image ();
iconout[1].src =  "img/icon_strasse_kl.png";
iconout[2] = new Image ();
iconout[2].src =  "img/icon_schiene_kl.png";
iconout[3] = new Image ();
iconout[3].src =  "img/icon_wasser_kl.png";
iconout[4] = new Image ();
iconout[4].src =  "img/icon_luft_kl.png";
iconout[5] = new Image ();
iconout[5].src =  "img/icon_individuell_kl.png";	
	
function icon_over(nr)
{
	document["icon"+nr].src=iconover[nr].src;		
}
function icon_out(nr)
{
	document["icon"+nr].src=iconout[nr].src;		
}