function bilderVorladen() {
	if (document.images) {
	    c = (document.images.length);
	    						//alert(c);
	    for(a=0;a<c;a++) {
	        b=document.images[a].name;
               	if(b) {
                    d= 'images/navigation/navi_'+b+'_a.gif';
	                //  alert(d);
	                (new Image()).src = d;
                }
	    }
	}
}

/*

function showLayer(pic,x) {
    var endneu;
	if(x == 'n') { endneu = '_n'; }
	else {         endneu = '_a'; }

	var nameneu = 'navi_'+pic+endneu+'.gif';
    if (document.getElementById)
         {  document.getElementById(pic).src = "images/navigation/"+nameneu;   }
}

*/
function over(pic) {
    var endneu = '_a';
	var nameneu = 'navi_'+pic+endneu+'.gif';
    if (document.getElementById)
         {  document.getElementById(pic).src = "images/navigation/"+nameneu;   }
}


function out(pic) {
    var endneu = '_n';
	var nameneu = 'navi_'+pic+endneu+'.gif';
    if (document.getElementById)
         {  document.getElementById(pic).src = "images/navigation/"+nameneu;   }
}