function float(num, img, desc){
	$('#img_holder').html('<img src="/_media/images/float/large/'+img+'" />');
	$('#img_desc').html(desc);
	$('.overlay_image').show();
	$('.arrow').hide();
	$('#arr' + num).show();
}

function close_it(){
	$('.arrow').hide();
	$('.overlay_image').hide();
}

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