var widthThumbs=0;
var idContThumbs=0;
var sommaThumbs=0;

function do_init(){

	accordionMenu(3);
	resizeDivScroll();
	opacityImages();
	
	
	$$('div.contAllThumbs').each(function(div){
				
		idContThumbs=div.id.substr(13);
		
		if($(div.id).getElementsByTagName('img').length>0){
			
			var contThumbs=$(div.id).getElementsByTagName('img').length;
		
			for(var i=0;i<contThumbs;i++){

				widthThumbs=100+4;
				sommaThumbs=sommaThumbs+widthThumbs;
			}
			
			
			$('contAllThumbs'+idContThumbs).setStyle('width',sommaThumbs+'px');
		
			if(sommaThumbs>($('menuThumbs'+idContThumbs).offsetWidth)){
				
				$('prevBtnThumbs'+idContThumbs).setStyle('display','block');
				$('nextBtnThumbs'+idContThumbs).setStyle('display','block');
				$('menuThumbs'+idContThumbs).setStyle('margin-left','15px');
				scorriMenuThumbs(idContThumbs);
			
			}
			
			sommaThumbs=0;
		}

	});
	
}


function resizeDivScroll(){

	if ($("lyr").offsetHeight>$("wn").offsetHeight){
	
		wndo = new oggettoScroll('wn', 'lyr');
		oggettoScroll.scrdy=true;
		wndo.setUpScrollbar(("dragBar"), ("track"), "v", 1, 1);
		oggettoScroll.GeckoTableBugFix('wn');
		
		$('wn').setStyles({width: '700px',clip: 'rect(0px, 700px, 383px, 0px)'});
		$('lyr').setStyle('width','700px');
		$('up').setStyle('visibility','visible');
		$('track').setStyle('visibility','visible');
		$('down').setStyle('visibility','visible');

		var lyrScroll=20;

		var lyrHeight=$('lyr').offsetHeight;
		var wnHeight=$('wn').offsetHeight;
		var lyrMax=(lyrHeight-wnHeight);
		
		var dragHeight=$('dragBar').offsetHeight;
		var trackHeight=$('track').offsetHeight;
		
		var dragMax=(trackHeight-dragHeight);

		var dragScroll=parseInt((dragMax*lyrScroll)/lyrMax);
		
		var dragStartPos=$('dragBar').offsetTop;
		
		//alert(dragStartPos);
		
		$('lyr').addEvent('mousewheel', function(e){
		
			var lyrPos=$('lyr').offsetTop;
			
			var dragPos=$('dragBar').offsetTop;
			
			//alert(dragPos + '-->' + dragScroll);
	
				if(e.wheel<0){ 
					
					if(lyrPos>-lyrMax){
						$('lyr').setStyle('top',(lyrPos-lyrScroll)+'px');
						if(dragPos<=dragMax){
							$('dragBar').setStyle('top',(dragPos+dragScroll)+'px');
						}
					}
					
				}else{
	
					if(lyrPos<0){
						$('lyr').setStyle('top',(lyrPos+lyrScroll)+'px');
					
						if(dragPos>0 && (dragPos-dragScroll>=0)){
							$('dragBar').setStyle('top',(dragPos-dragScroll)+'px');
						}
	
					}
				}
		});

	}else{
		
		$('wn').setStyles({width: '730px',clip: 'rect(0px, 730px, 386px, 0px)'});
		$('lyr').setStyle('width','730px');
		$('up').setStyle('visibility','hidden');
		$('track').setStyle('visibility','hidden');
		$('down').setStyle('visibility','hidden');
	}
	
}

/*****************************************************************/
/************************** SCORRI THUMBS ************************/
/*****************************************************************/
function scorriMenuThumbs(idContThumbs) {
	
	var myScroller = new Scroller('menuThumbs'+idContThumbs, {area: 50, velocity: 0.2});

	myScroller.start();
	
	
	
}


function opacityImages(){
	
	$$('img.imgThumbs').each(function(img){
	
		img.onmouseover=function(){ this.setStyle('opacity',0.5); }

		img.onmouseout=function(){ this.setStyle('opacity',1); }

	});
	
}