function imgOn(imgName)
{if (document.images) {document[imgName].src=eval(imgName+"on.src");}}

function imgOff(imgName)
{if (document.images) {document[imgName].src=eval(imgName+"off.src");}}

if (document.images)
{
imgknt1on=new Image(); imgknt1on.src="img/snav_kontakt_over.gif";
imgknt1off=new Image(); imgknt1off.src="img/snav_kontakt_off.gif";

imgknt2on=new Image(); imgknt2on.src="img/snav_anfahrtsskizze_over.gif";
imgknt2off=new Image(); imgknt2off.src="img/snav_anfahrtsskizze_off.gif";

imgknt3on=new Image(); imgknt3on.src="img/e_snav_contact_over.gif";
imgknt3off=new Image(); imgknt3off.src="img/e_snav_contact_off.gif";

imgknt4on=new Image(); imgknt4on.src="img/e_snav_map_over.gif";
imgknt4off=new Image(); imgknt4off.src="img/e_snav_map_off.gif";

imgknt5on=new Image(); imgknt5on.src="img/e_snav_form_over.gif";
imgknt5off=new Image(); imgknt5off.src="img/e_snav_form_off.gif";

imgknt6on=new Image(); imgknt6on.src="img/snav_form_over.gif";
imgknt6off=new Image(); imgknt6off.src="img/snav_form_off.gif";


}