var gCor;
var gWid;
var gHei;
// ==============================================================
// HANDLES SCROLLER/S
// Modified from Aaron Boodman http://webapp.youngpup.net/?request=/components/ypSimpleScroll.xml
// mixed ypSimpleScroll with dom-drag script and allowed multiple scrolelrs through array instances
// (c)2004 Sergi Meseguer (http://zigotica.com/), 04/2004:
// ==============================================================
var theHandle = []; var theRoot = []; var theThumb = []; var theScroll = []; var thumbTravel = []; var ratio = [];

function instantiateScroller(count, id, left, top, width, height, speed,cor,wid2,hei2){
	if(document.getElementById) {
		gCor = cor;
		gWid = wid2;
		gHei = hei2;
		theScroll[count] = new ypSimpleScroll(id, left, top, width, height, speed);
	}
}

function createDragger(count, handler, root, thumb, minX, maxX, minY, maxY,cor,wid,hei){
		var buttons = '<div class="up" id="up'+count+'"><a href="#" onmouseover="theScroll['+count+'].scrollNorth(\''+count+'\')" onmouseout="theScroll['+count+'].endScroll()" onclick="return false;"><img src="img/scroll_up.gif" width="25" height="36"></a></div><div class="dn"  id="dn'+count+'""><a href="#" onmouseover="theScroll['+count+'].scrollSouth(\''+count+'\')" onmouseout="theScroll['+count+'].endScroll()" onclick="return false;"><img src="img/scroll_down.gif" width="25" height="36"></a></div><div class="thumb" id="'+thumb+'" style="left: 0px; top: 25px;z-index:10;"><img src="img/scroll_drag.png" width="25" height="24"></div>';
		document.getElementById(root).innerHTML = buttons + document.getElementById(root).innerHTML;

		theRoot[count]   = document.getElementById(root);
		theThumb[count]  = document.getElementById(thumb);
		var thisup = document.getElementById("up"+count);
		var thisdn = document.getElementById("dn"+count);
		theThumb[count].style.left = parseInt(minX+15) + "px";
		thisup.style.left = parseInt(minX+15) + "px";
		thisdn.style.left = parseInt(minX+15) + "px";
		theThumb[count].style.border =0;
		theThumb[count].style.top = parseInt(minY) + "px";
		thisup.style.top = 0 + "px";
		thisdn.style.top = parseInt(minY+maxY) + "px";
		//thisdn.style.top = 15 + "px";

		theScroll[count].load();

		//Drag.init(theHandle[count], theRoot[count]); //not draggable on screen
		Drag.init(theThumb[count], null, minX+15, maxX+15, minY, maxY);
		
		// the number of pixels the thumb can travel vertically (max - min)
		thumbTravel[count] = theThumb[count].maxY - theThumb[count].minY;

		// the ratio between scroller movement and thumbMovement
		ratio[count] = theScroll[count].scrollH / thumbTravel[count];

		theThumb[count].onDrag = function(x, y) {
			theScroll[count].jumpTo(null, Math.round((y - theThumb[count].minY) * ratio[count]));
		}
}	

// INITIALIZER:
// ==============================================================
// ala Simon Willison http://simon.incutio.com/archive/2004/05/26/addLoadEvent
function addLoadEvent(fn) {
	var old = window.onload;
	if (typeof window.onload != 'function') {
	 window.onload = fn;
	}
	else {
	 window.onload = function() {
		 old();
		 fn();
	 }
	}
}
addLoadEvent(function(){
		if(theScroll.length>0) {
		for(var i=0;i<theScroll.length;i++){
			var fix = 25;
			if(navigator.appName.indexOf('Internet Explorer')>0){
				var version=navigator.appVersion.substring(22,23);
				if(version == '6') { fix = 50; }
			}
			createDragger(i, "handle"+i, "root"+i, "thumb"+i, theScroll[i].clipW, theScroll[i].clipW, 30, theScroll[i].clipH-fix,gCor,gWid,gHei);
		}
	}
})