// Cross-Browser Functions

var dom = document.getElementById;
var iex = document.all;
var ns4 = document.layers;

function addEvent(event,method){
this[event] = method;
if(ns4) this.captureEvents(Event[event.substr(2,event.length).toUpperCase()]);
}
function removeEvent(event){
this[event] = null;
if(ns4) this.releaseEvents(Event[event.substr(2,event.length).toUpperCase()]);
}
function getElement(name,nest){
nest = nest ? "document."+nest+"." : "";
var el = dom ? document.getElementById(name) : iex ? document.all[name] : ns4 ? eval(nest+"document."+name) : false;
el.css = ns4 ? el : el.style;
el.getTop = function(){return parseInt(el.css.top) || 0};
el.setTop = function(y){el.css.top = ns4 ? y: y+"px"};
el.getHeight = function(){return ns4 ? el.document.height : el.offsetHeight};
el.getClipHeight = function(){return ns4 ? el.clip.height : el.offsetHeight};
el.hideVis = function(){el.css.visibility="hidden"};
el.addEvent = addEvent;
el.removeEvent = removeEvent;
return el;
}
function getYMouse(e){
return iex ? event.clientY : e.pageY;
}

document.addEvent = addEvent;
document.removeEvent = removeEvent;

// ||||||||||||||||||||||||||||||||||||||||||||||||||
// Scroller Class

ScrollObj = function(speed, dragHeight, trackHeight, trackObj, upObj, downObj, dragObj, contentMaskObj, contentObj){
this.speed = speed;
this.dragHeight = dragHeight;
this.trackHeight = trackHeight;
this.trackObj = getElement(trackObj);
this.upObj = getElement(upObj);
this.downObj = getElement(downObj);
this.dragObj = getElement(dragObj);
this.contentMaskObj = getElement(contentMaskObj);
this.contentObj = getElement(contentObj,contentMaskObj);
this.obj = contentObj+"Object";
eval(this.obj+"=this");

this.trackTop = this.dragObj.getTop();
this.trackLength = this.trackHeight-this.dragHeight;
this.trackBottom = this.trackTop+this.trackLength;
this.contentMaskHeight = this.contentMaskObj.getClipHeight();
this.contentHeight = this.contentObj.getHeight();
this.contentLength = this.contentHeight-this.contentMaskHeight;
this.scrollLength = this.trackLength/this.contentLength;
this.scrollTimer = null;

if(this.contentHeight <= this.contentMaskHeight){
this.dragObj.hideVis();
}else{
var self = this;
this.trackObj.addEvent("onmousedown", function(e){self.scrollJump(e);return false});
this.upObj.addEvent("onmousedown", function(){self.scroll(self.speed);return false});
this.upObj.addEvent("onmouseup", function(){self.stopScroll()});
this.upObj.addEvent("onmouseout", function(){self.stopScroll()});
this.downObj.addEvent("onmousedown", function(){self.scroll(-self.speed);return false});
this.downObj.addEvent("onmouseup", function(){self.stopScroll()});
this.downObj.addEvent("onmouseout", function(){self.stopScroll()});
this.dragObj.addEvent("onmousedown", function(e){self.startDrag(e);return false});
if(iex) this.dragObj.addEvent("ondragstart", function(){return false});
}
}
ScrollObj.prototype.startDrag = function(e){
this.dragStartMouse = getYMouse(e);
this.dragStartOffset = this.dragObj.getTop();
var self = this;
document.addEvent("onmousemove", function(e){self.drag(e)});
document.addEvent("onmouseup", function(){self.stopDrag()});
}
ScrollObj.prototype.stopDrag = function(){
document.removeEvent("onmousemove");
document.removeEvent("onmouseup");
}
ScrollObj.prototype.drag = function(e){
var currentMouse = getYMouse(e);
var mouseDifference = currentMouse-this.dragStartMouse;
var dragDistance = this.dragStartOffset+mouseDifference;
var dragMovement = (dragDistance<this.trackTop) ? this.trackTop : (dragDistance>this.trackBottom) ? this.trackBottom : dragDistance;
this.dragObj.setTop(dragMovement);
var contentMovement = -(dragMovement-this.trackTop)*(1/this.scrollLength);
this.contentObj.setTop(contentMovement);
}
ScrollObj.prototype.scroll = function(speed){
var contentMovement = this.contentObj.getTop()+speed;
var dragMovement = this.trackTop-Math.round(this.contentObj.getTop()*(this.trackLength/this.contentLength));
if(contentMovement > 0){
contentMovement = 0;
}else if(contentMovement < -this.contentLength){
contentMovement = -this.contentLength;
}
if(dragMovement < this.trackTop){
dragMovement = this.trackTop;
}else if(dragMovement > this.trackBottom){
dragMovement = this.trackBottom;
}
this.contentObj.setTop(contentMovement);
this.dragObj.setTop(dragMovement);
this.scrollTimer = window.setTimeout(this.obj+".scroll("+speed+")",25);
}
ScrollObj.prototype.stopScroll = function(){
if(this.scrollTimer){
window.clearTimeout(this.scrollTimer);
this.scrollTimer = null;
}
}
ScrollObj.prototype.scrollJump = function(e){
var currentMouse = getYMouse(e);
var dragDistance = currentMouse-(this.dragHeight/2);
var dragMovement = (dragDistance<this.trackTop) ? this.trackTop : (dragDistance>this.trackBottom) ? this.trackBottom : dragDistance;
this.dragObj.setTop(dragMovement);
var contentMovement = -(dragMovement-this.trackTop)*(1/this.scrollLength);
this.contentObj.setTop(contentMovement);
}

// ||||||||||||||||||||||||||||||||||||||||||||||||||
// Misc Functions

function fixNetscape4(){
if(ns4origWidth != window.innerWidth || ns4origHeight != window.innerHeight){
window.location.reload();
}	
}
if(document.layers){
ns4origWidth = window.innerWidth;
ns4origHeight = window.innerHeight;
window.onresize = fixNetscape4;
}


function muda_frame ( nid ) {
	var getFFVersion=navigator.userAgent.substring(navigator.userAgent.indexOf("Firefox")).split("/")[1];
	var FFextraHeight=getFFVersion>=0.1? 16 : 0; //extra height in px to add to iframe in FireFox 1.0+ browsers
	var currentfr=document.getElementById(nid);
	if (currentfr && !window.opera) {
		currentfr.style.display="block";
	}
	if (currentfr.contentDocument && currentfr.contentDocument.body.offsetHeight) { //ns6 syntax
		currentfr.height = currentfr.contentDocument.body.offsetHeight+FFextraHeight; 
	} else if (currentfr.Document && currentfr.Document.body.scrollHeight) { //ie5+ syntax
		currentfr.height = currentfr.Document.body.scrollHeight;
	}
}

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 P7_Snap() { //v2.63 by PVII
 var x,y,ox,bx,oy,p,tx,a,b,k,d,da,e,el,tw,q0,xx,yy,w1,pa='px',args=P7_Snap.arguments;a=parseInt(a);
 if(document.layers||window.opera){pa='';}for(k=0;k<(args.length);k+=4){
 if((g=MM_findObj(args[k]))!=null){if((el=MM_findObj(args[k+1]))!=null){
 a=parseInt(args[k+2]);b=parseInt(args[k+3]);x=0;y=0;ox=0;oy=0;p="";tx=1;
 da="document.all['"+args[k]+"']";if(document.getElementById){
 d="document.getElementsByName('"+args[k]+"')[0]";if(!eval(d)){
 d="document.getElementById('"+args[k]+"')";if(!eval(d)){d=da;}}
 }else if(document.all){d=da;}if(document.all||document.getElementById){while(tx==1){
 p+=".offsetParent";if(eval(d+p)){x+=parseInt(eval(d+p+".offsetLeft"));y+=parseInt(eval(d+p+".offsetTop"));
 }else{tx=0;}}ox=parseInt(g.offsetLeft);oy=parseInt(g.offsetTop);tw=x+ox+y+oy;
 if(tw==0||(navigator.appVersion.indexOf("MSIE 4")>-1&&navigator.appVersion.indexOf("Mac")>-1)){
  ox=0;oy=0;if(g.style.left){x=parseInt(g.style.left);y=parseInt(g.style.top);}else{
  w1=parseInt(el.style.width);bx=(a<0)?-5-w1:-10;a=(Math.abs(a)<1000)?0:a;b=(Math.abs(b)<1000)?0:b;
  x=document.body.scrollLeft+event.clientX+bx;y=document.body.scrollTop+event.clientY;}}
 }else if(document.layers){x=g.x;y=g.y;q0=document.layers,dd="";for(var s=0;s<q0.length;s++){
  dd='document.'+q0[s].name;if(eval(dd+'.document.'+args[k])){x+=eval(dd+'.left');y+=eval(dd+'.top');
  break;}}}e=(document.layers)?el:el.style;xx=parseInt(x+ox+a),yy=parseInt(y+oy+b);
 if(navigator.appVersion.indexOf("MSIE 5")>-1 && navigator.appVersion.indexOf("Mac")>-1){
  xx+=parseInt(document.body.leftMargin);yy+=parseInt(document.body.topMargin);}
 e.left=xx+pa;e.top=yy+pa;}}}
}