isIE=document.all;
isNN=!document.all&&document.getElementById;
isN4=document.layers;
isHot=false;

function ddInit(e){
  topDog=isIE ? "BODY" : "HTML";
  whichDog=isIE ? document.all.theLayer : document.getElementById("theLayer");  
  hotDog=isIE ? event.srcElement : e.target;  
  while (hotDog.id!="titleBar"&&hotDog.tagName!=topDog){
    hotDog=isIE ? hotDog.parentElement : hotDog.parentNode;
  }  
  if (hotDog.id=="titleBar"){
    offsetx=isIE ? event.clientX : e.clientX;
    offsety=isIE ? event.clientY : e.clientY;
    nowX=parseInt(whichDog.style.left);
    nowY=parseInt(whichDog.style.top);
    ddEnabled=true;
    document.onmousemove=dd;
  }
}

function dd(e){
  if (!ddEnabled) return;
  whichDog.style.left=isIE ? nowX+event.clientX-offsetx : nowX+e.clientX-offsetx; 
  whichDog.style.top=isIE ? nowY+event.clientY-offsety : nowY+e.clientY-offsety;
  return false;  
}

function ddN4(whatDog){
  if (!isN4) return;
  N4=eval(whatDog);
  N4.captureEvents(Event.MOUSEDOWN|Event.MOUSEUP);
  N4.onmousedown=function(e){
    N4.captureEvents(Event.MOUSEMOVE);
    N4x=e.x;
    N4y=e.y;
  }
  N4.onmousemove=function(e){
    if (isHot){
      N4.moveBy(e.x-N4x,e.y-N4y);
      return false;
    }
  }
  N4.onmouseup=function(){
    N4.releaseEvents(Event.MOUSEMOVE);
  }
}

function hideMe(){
 
  if (isIE||isNN) whichDog.style.visibility="hidden";
  else if (isN4) document.theLayer.visibility="hide";
}

function showMe(){
  if (isIE||isNN) whichDog.style.visibility="visible";
  else if (isN4) document.theLayer.visibility="show";
}
function setPosition(){
	try
	{
		if(typeof(whichDog)== 'undefined')
		{
			whichDog=isIE ? document.all.theLayer : document.getElementById("theLayer");  
  		}
  		if (parseInt(navigator.appVersion)>3)
  		{
			if (navigator.appName=="Netscape")
			{
				winW = window.innerWidth;
				winH = window.innerHeight;
			}
			if (navigator.appName.indexOf("Microsoft")!=-1)
			{
				winW = document.body.offsetWidth;
				winH = document.body.offsetHeight;
			}
		}

		wleft=(winW -  parseInt(whichDog.offsetWidth))/2;
		wtop = (winH -  parseInt(whichDog.offsetHeight))/2;
		//alert(parseInt(whichDog.offsetWidth));
		//alert(document.body.offsetHeight);
		//alert(whichDog.offsetHeight);
		//alert(winH);
		//alert(wtop);
		whichDog.style.left = wleft + "px";
		whichDog.style.top = wtop + "px";
		//whichDog.style.backgroundColor = "red";
		//whichDog.style.height = winH + "px";
		//whichDog=isIE ? document.all.theLayer : document.getElementById("theLayer");  
		//alert(document.getElementById("theLayer"));
		//alert(document.all.theLayer);
		
		whichDog.style.visibility = "visible";
		

		if (isIE||isNN)
		{
			//whichDog.style.visibility="hidden";
			//alert(whichDog);
		}
		else if (isN4) 
		{
			//document.theLayer.visibility="hide";
		}
	}	
	catch (e)
	{
	}
}

document.onmousedown=ddInit;
document.onmouseup=Function("ddEnabled=false");