if (document.images) {
	arrow = new Image();
 	arrow.src = "images/icn_arrow_red.gif";
	arrow_off = new Image();
	arrow_off.src = "images/icn_arrow_white.gif";
	arrow2 = new Image();
 	arrow2.src = "images/icn_arrow2_red.gif";
	arrow2_off = new Image();
	arrow2_off.src = "images/icn_arrow2_white.gif";
	arrow3 = new Image();
 	arrow3.src = "images/icn_arrow3_red.gif";
	arrow3_off = new Image();
	arrow3_off.src = "images/icn_arrow3_yellow.gif";
	gwidee = new Image();
 	gwidee.src = "images/vsl_gw_teaser_idee.gif";
	gwidee_off = new Image();
 	gwidee_off.src = "images/vsl_gw_teaser_idee_off.gif";
	gwmagazin = new Image();
 	gwmagazin.src = "images/vsl_gw_teaser_magazin.gif";
	gwmagazin_off = new Image();
 	gwmagazin_off.src = "images/vsl_gw_teaser_magazin_off.gif";
	gwwiki = new Image();
 	gwwiki.src = "images/vsl_gw_teaser_wiki.gif";
	gwwiki_off = new Image();
 	gwwiki_off.src = "images/vsl_gw_teaser_wiki_off.gif";
	gwcommunity = new Image();
 	gwcommunity.src = "images/vsl_gw_teaser_community.gif";
	gwcommunity_off = new Image();
 	gwcommunity_off.src = "images/vsl_gw_teaser_community_off.gif";
	freenetworks = new Image();
 	freenetworks.src = "images/vsl_teaser_freenetworks.gif";
	freenetworks_off = new Image();
 	freenetworks_off.src = "images/vsl_teaser_freenetworks_off.gif";
}

function highlight(change_this,switch_to) {
	if (document.images) {
		change_this.src = switch_to.src;
	}
}