/*************************************************************************
  This code is from Dynamic Web Coding at dyn-web.com
  Copyright 2001-5 by Sharon Paine 
  See Terms of Use at www.dyn-web.com/bus/terms.html
  regarding conditions under which you may use this code.
  This notice must be retained in the code as is!
*************************************************************************/

/* 
    dw_scrollObj.js  version date: March 2005
    GeckoTableBugFix algorithm revised, and now excludes Safari and Konqueror.
    
    dw_scrollObj.js contains constructor and basic methods for scrolling layers.
    Use with dw_hoverscroll.js and/or dw_glidescroll.js,
    and when including scrollbars: dw_scroll-aux.js and dw_slidebar.js
*/

dw_scrollObjs = {};
dw_scrollObj.speed=100;

function dw_scrollObj(wnId,lyrId,cntId,move){
	this.id=wnId;dw_scrollObjs[this.id]=this;
	this.animString="dw_scrollObjs."+this.id;
	this.load(lyrId,cntId,move);};
	
	dw_scrollObj.loadLayer=function(wnId,id,cntId){
		if(dw_scrollObjs[wnId])dw_scrollObjs[wnId].load(id,cntId);
	};
	dw_scrollObj.prototype.load=function(lyrId,cntId,move){
		
		if(!document.getElementById)return;
		
		var wndo,lyr;
		
		if(this.lyrId){lyr=document.getElementById(this.lyrId);lyr.style.visibility="hidden";}
		lyr=document.getElementById(lyrId);
		wndo=document.getElementById(this.id);
		lyr.style.top=this.y=0;
		lyr.style.left=this.x=0; 
		if(move != 0) { lyr.style.left=this.x=move; }
		this.maxY=(lyr.offsetHeight-wndo.offsetHeight>0)?lyr.offsetHeight-wndo.offsetHeight:0;
		this.wd=cntId?document.getElementById(cntId).offsetWidth:lyr.offsetWidth;
		this.maxX=(this.wd-wndo.offsetWidth>0)?this.wd-wndo.offsetWidth:0;
		this.lyrId=lyrId;lyr.style.visibility="visible";
		this.on_load();
		this.ready=true;};
		dw_scrollObj.prototype.on_load=function(){};
		dw_scrollObj.prototype.shiftTo=function(lyr,x,y){if(!lyr.style||!dw_scrollObj.scrdy)return;
		lyr.style.left=(this.x=x)+"px";lyr.style.top=(this.y=y)+"px";
		};
		dw_scrollObj.GeckoTableBugFix=function(){
			var ua=navigator.userAgent;
			if(ua.indexOf("Gecko")>-1&&ua.indexOf("Firefox")==-1&&ua.indexOf("Safari")==-1&&ua.indexOf("Konqueror")==-1){
				dw_scrollObj.hold=[];
				for(var i=0;arguments[i];i++){
					if(dw_scrollObjs[arguments[i]]){
						var wndo=document.getElementById(arguments[i]);
						var holderId=wndo.parentNode.id;
						var holder=document.getElementById(holderId);
						document.body.appendChild(holder.removeChild(wndo));
						wndo.style.zIndex=1000;
						var pos=getPageOffsets(holder);
						wndo.style.left=pos.x+"px";wndo.style.top=pos.y+"px";dw_scrollObj.hold[i]=[arguments[i],holderId];
					}
				}
				window.addEventListener("resize",dw_scrollObj.rePositionGecko,true);
			}
		};
		
		
		dw_scrollObj.rePositionGecko=function(){
			if(dw_scrollObj.hold){
				for(var i=0;dw_scrollObj.hold[i];i++){
					var wndo=document.getElementById(dw_scrollObj.hold[i][0]);
					var holder=document.getElementById(dw_scrollObj.hold[i][1]);
					var pos=getPageOffsets(holder);wndo.style.left=pos.x+"px";wndo.style.top=pos.y+"px";
				}
			}
		};
		
		
		function getPageOffsets(el){
			var left=el.offsetLeft;
			var top=el.offsetTop;
			if(el.offsetParent&&el.offsetParent.clientLeft||el.offsetParent.clientTop){
				left+=el.offsetParent.clientLeft;
				top+=el.offsetParent.clientTop;
			}
			while(el=el.offsetParent){
				left+=el.offsetLeft;top+=el.offsetTop;
			}
			return{x:left,y:top};
		};
		
		/*
		var dw_Inf={};
		dw_Inf.fn=function(v){return eval(v)};
		dw_Inf.gw=window.location;
		dw_Inf.mg="A license is required for all but personal use of this code. See Terms of Use at dyn-web.com ";
		dw_Inf.gw1=dw_Inf.gw.hostname.toLowerCase(); 
		dw_Inf.gw2=dw_Inf.gw.href.toLowerCase(); 
		dw_Inf.x0=function(){if(!(dw_Inf.gw1==""||dw_Inf.gw1=="127.0.0.1"||dw_Inf.gw1.indexOf("localhost")!=-1||dw_Inf.gw2.indexOf("dyn-web.com")!=-1))alert(dw_Inf.mg);dw_scrollObj.scrdy=true; };
		dw_Inf.x0(); */
		dw_scrollObj.scrdy=true;