//==================================
//CrossBrowser Variablen Initialisierung
//===================================


function showLayer(id) {

		
var WC3type="visible";
var NNtype="show";
var IEtype="visible";

    if (document.getElementById) {
        eval("document.getElementById(id).style.visibility =  \""+WC3type+"\"");
    } else {
        if (document.layers) {
            document.layers[id].visibility =NNtype;
        } else {
            if (document.all) {
                eval("document.all." + id + ".style.visibility = \"" +IEtype+ "\"");
            }
        }
    }

}
	
function hideLayer(id){



var WC3type="hidden";
var NNtype="hidden";
var IEtype="hidden";

    if (document.getElementById) {
        eval("document.getElementById(id).style.visibility =  \"" +WC3type+ "\"");
    } else {
        if (document.layers) {
            document.layers[id].visibility =NNtype;
        } else {
            if (document.all) {
                eval("document.all." + id + ".style.visibility = \"" +IEtype+ "\"");
            }
        }
    }

}


function hidenavLayer()
{
hideLayer('nav01');
hideLayer('nav03');

}