function start_scroll(num){
scroll_info=new Array();


scroll_info[0]=new Array();
scroll_info[0]["height"]="320"; //completo anche della barra
scroll_info[0]["Bheight"]="320"; //altezza della barra
scroll_info[0]["Bwidth"]="5"; //larghezza della barra
scroll_info[0]["width"]="460";

scroll_info[1]=new Array();
scroll_info[1]["height"]="50"; //completo anche della barra
scroll_info[1]["Bheight"]="40"; //altezza della barra
scroll_info[1]["Bwidth"]="5"; //larghezza della barra
scroll_info[1]["width"]="100";


/*****************************************************
/
/	FINE CONFIGURAZIONE PANNELLI
/
/*******************************************************/

	for (i=0; i<=num; i++) {
		scroll_info[i]["id"]=document.getElementById("scroll-"+i);
		scroll_info[i]["idB"]=document.getElementById("scroll_barra-"+i);
		scroll_info[i]["idBM"]=document.getElementById("scroll_barraM-"+i);
		scroll_info[i]["idC"]=document.getElementById("scroll_contenuto-"+i);
		scroll_info[i]["idS"]=document.getElementById("scroll_buttonS-"+i);
		scroll_info[i]["idG"]=document.getElementById("scroll_buttonG-"+i);
		scroll_info[i]["id"].style.width=scroll_info[i]["width"]+"px";
		scroll_info[i]["id"].style.height=scroll_info[i]["height"]+"px";

		scroll_info[i]["idC"].style.top="0px";
		scroll_info[i]["idC"].style.left="0px";
		scroll_info[i]["idC"].style.width=scroll_info[i]["width"]+"px";
		scroll_info[i]["idC"].style.height=scroll_info[i]["height"]+"px";
		scroll_info[i]["idC"].style.overflow='hidden';

		scroll_info[i]["idB"].style.height=scroll_info[i]["Bheight"]+"px";
		scroll_info[i]["idB"].style.width=scroll_info[i]["Bwidth"]+"px";
		scroll_info[i]["idB"].style.position='absolute';
		scroll_info[i]["idB"].style.top=((scroll_info[i]["height"]-scroll_info[i]["Bheight"])/2)+"px";
		scroll_info[i]["idB"].style.left=(scroll_info[i]["width"]-scroll_info[i]["Bwidth"])+"px";

		scroll_info[i]["idS"].style.width=scroll_info[i]["Bwidth"]+"px";
		scroll_info[i]["idS"].style.height=((scroll_info[i]["height"]-scroll_info[i]["Bheight"])/2)+"px";
		scroll_info[i]["idS"].style.position='absolute';
		scroll_info[i]["idS"].style.top="0px";
		scroll_info[i]["idS"].style.left=(scroll_info[i]["width"]-scroll_info[i]["Bwidth"])+"px";


		scroll_info[i]["idG"].style.width=scroll_info[i]["Bwidth"]+"px";
		scroll_info[i]["idG"].style.height=((scroll_info[i]["height"]-scroll_info[i]["Bheight"])/2)+"px";
		scroll_info[i]["idG"].style.position='absolute';
		scroll_info[i]["idG"].style.bottom="0px";
		scroll_info[i]["idG"].style.left=(scroll_info[i]["width"]-scroll_info[i]["Bwidth"])+"px";


		scroll_info[i]["idBM"].style.width=scroll_info[i]["Bwidth"]+"px";
		Math.round(scroll_info[i]["height"]*scroll_info[i]["Bheight"]/scroll_info[i]["idC"].scrollHeight);
		scroll_info[i]["idBMH"]=Math.round(scroll_info[i]["height"]*scroll_info[i]["Bheight"]/scroll_info[i]["idC"].scrollHeight);
		scroll_info[i]["idBM"].style.height=scroll_info[i]["idBMH"]+"px";
		scroll_info[i]["idBM"].style.position='absolute';
		scroll_info[i]["idBM"].style.top=(scroll_info[i]["idC"].scrollTop*(scroll_info[i]["Bheight"])/scroll_info[i]["idC"].scrollHeight)+"px";
		scroll_info[i]["stato"]=false;
	}
}



function scrolla(id,val){
	if(scroll_info[id]["idC"].scrollTop+val<0){
		scroll_info[id]["idC"].scrollTop=0;
	}else if(scroll_info[id]["idC"].scrollTop+val>scroll_info[id]["idC"].scrollHeight){
		scroll_info[id]["idC"].scrollTop=scroll_info[id]["idC"].scrollHeight;
	}else{
		scroll_info[id]["idC"].scrollTop=scroll_info[id]["idC"].scrollTop+val;
	}
	scroll_info[id]["idBM"].style.top=(scroll_info[id]["idC"].scrollTop*(scroll_info[id]["Bheight"])/scroll_info[id]["idC"].scrollHeight)+"px";
}

function mouzmov(e) {
	if (!e) var e = window.event;
	cosavedo = (e.target) ? e.target : e.srcElement;
	coordinatay=e.clientY;
	
	if(muovi>-1){
		if(posizione + coordinatay - blocca<0){
			document.getElementById("scroll_barraM-"+muovi).style.top=0;
		}else if(posizione + coordinatay - blocca > (scroll_info[muovi]["Bheight"]-scroll_info[muovi]["idBMH"])){
			document.getElementById("scroll_barraM-"+muovi).style.top=(scroll_info[muovi]["Bheight"]-scroll_info[muovi]["idBMH"]);
		}else{
			document.getElementById("scroll_barraM-"+muovi).style.top= posizione + coordinatay - blocca;
		}
		scroll_info[muovi]["idC"].scrollTop=document.getElementById("scroll_barraM-"+muovi).style.top.substring(0,(document.getElementById("scroll_barraM-"+muovi).style.top.length-2))*scroll_info[muovi]["idC"].scrollHeight/scroll_info[muovi]["Bheight"];
		return false;
	}
	return false;
}



function mouzdown(e){
	if(cosavedo.id.substring(0, 13)=="scroll_barraM"){
		muovi=cosavedo.id.substring(14)*1;
		if (!e) var e = window.event;
		blocca=e.clientY;
		posizione = parseInt(document.getElementById("scroll_barraM-"+muovi).style.top+0);
		return false;
	}

}

muovi=-1;
document.onmousemove=mouzmov;
document.onmousedown=mouzdown;
document.onmouseup=new Function("muovi=-1");