function initcat() {
	$('cat_default').setStyle({'display': 'block'});
	$('cat_aircomp').setStyle({'display': 'none'});
	$('cat_batchrg').setStyle({'display': 'none'});
	$('cat_heatclthng').setStyle({'display': 'none'});
	$('cat_lugtrix').setStyle({'display': 'none'});
	$('cat_mntsys').setStyle({'display': 'none'});
	$('cat_pwrcbl').setStyle({'display': 'none'});
	$('cat_pwrdist').setStyle({'display': 'none'});
	$('cat_sktkit').setStyle({'display': 'none'});
	set_cat_default();

	MM_preloadImages('img/bike/bike_mount.png','img/bike/bike_textmount.png','img/bike/bike_luggage.png','img/bike/bike_textluggage.png','img/bike/bike_heated.png','img/bike/bike_textheated.png','img/bike/bike_power.png','img/bike/bike_textpower.png','img/bike/bike_battery.png','img/bike/bike_textbattery.png','img/bike/bike_tire.png','img/bike/bike_texttire.png','img/bike/bike_socket.png','img/bike/bike_textsocket.png','img/bike/bike_cables.png','img/bike/bike_textcables.png');
}

function set_cat_desc(divname,img) {
	$('cat_default').setStyle({'display': 'none'});
	var d=document.getElementById(divname);
	var t=$('bike_cat_text');
	t.setStyle({'display': 'none'});
	t.update(d.innerHTML);
	t.setStyle({'display': 'block'});
	MM_swapImage('bike','',img,1);
}

function set_cat_default() {
	set_cat_desc('cat_default','img/bike/bike_normal.png');
	MM_swapImgRestore();
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
  var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
  if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}