var element_y;
var swiffy;
var cur_groupid;
var group_sortable = new Array();
var lightbox;
var content;

window.addEvent('load', function() {
	checkScrollerWidth();
	checkImages();
});

function checkImages() {
	var check_w = window.getSize().x + 500;
	var winh = window.getSize().y;

	var divs = $$('.single_image_holder');
	for(var i=0; i<divs.length; i++) {
		if(divs[i].getChildren().length) continue;
		if((parseInt($('main_images').getPosition().x) + parseInt(divs[i].get('xpos'))) >= check_w) return;
		var img = new Element('img', {
			'src': divs[i].get('source')
		});
		divs[i].adopt(img);
	}
}

window.addEvent('resize', function(){			
	checkScrollerWidth();
});

function checkScrollerWidth() {
	if($('scrollbar2') && $('content2') && $('handle2'))
	makeScrollbar( $('content2'), $('main_images'), $('scrollbar2'), $('handle2'), true);
}

function makeScrollbar(content,checkContent,scrollbar,handle,horizontal,ignoreMouse){
	
	if(checkContent.getScrollSize().x < scrollbar.getSize().x) {
		handle.setStyle('display','none');
		return;
	}
	
	handle.setStyle('display','block');

	var steps = (horizontal?(content.getScrollSize().x - content.getSize().x):(content.getScrollSize().y - content.getSize().y))
	var slider = new Slider(scrollbar, handle, {	
		steps: steps,
		mode: (horizontal?'horizontal':'vertical'),
		onChange: function(step){
			var x = (horizontal?step:0);
			var y = (horizontal?0:step);
			content.scrollTo(x,y);
			checkImages();
		}
	}).set(0);
	if( !(ignoreMouse) ){
		$$(content, scrollbar).addEvent('mousewheel', function(e){	
			e = new Event(e).stop();
			var step = slider.step - e.wheel * 30;	
			slider.set(step);					
		});
	}
}



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];}
}