var Tooltip = {

		followMouse: true,
		offX: 8,
		offY: 12,
		tipID: "tipDiv",
		showDelay: 100,
		hideDelay: 200,
		ready:false,
		timer:null,
		tip:null,
		
		init:function(){
			if(document.createElement&&document.body&&typeof document.body.appendChild!="undefined")
			{
				if(!document.getElementById(this.tipID))
				{
					var el=document.createElement("DIV");
					el.id=this.tipID;
					document.body.appendChild(el);
				}
				
				this.ready=true;
			}
		},
		
		show:function(e,msg)
		{
			if(this.timer)
			{
				clearTimeout(this.timer);
				this.timer=0;
			}
			
			if(!this.ttready)
				return;
			
			this.tip=document.getElementById(this.tipID);
			
			if(this.followMouse)
				dw_event.add(document,"mousemove",this.trackMouse,true);
				
			this.writeTip("");
			this.writeTip(msg);
			viewport.getAll();
			this.positionTip(e);
			this.timer=setTimeout("Tooltip.toggleVis('"+this.tipID+"', 'visible')",this.showDelay);
			
		},
		
		writeTip:function(msg)
		{
			if(this.tip&&typeof this.tip.innerHTML!="undefined")
				this.tip.innerHTML=msg;
		},
		
		positionTip:function(e)
		{
			if(this.tip&&this.tip.style)
			{
				var x=e.pageX?e.pageX:e.clientX+viewport.scrollX;
				var y=e.pageY?e.pageY:e.clientY+viewport.scrollY;
				
				if(x+this.tip.offsetWidth+this.offX>viewport.width+viewport.scrollX)
				{
					x=x-this.tip.offsetWidth-this.offX;if(x<0)x=0;
				}
				else
					x=x+this.offX;
				
				if(y+this.tip.offsetHeight+this.offY>viewport.height+viewport.scrollY)
				{
					y=y-this.tip.offsetHeight-this.offY;
					
					if(y<viewport.scrollY)y=viewport.height+viewport.scrollY-this.tip.offsetHeight;
				}
				else
					y=y+this.offY;this.tip.style.left=x+"px";
					
				this.tip.style.top=y+"px";
			}
		},
		
		hide:function()
		{
			if(this.timer)
			{
				clearTimeout(this.timer);
				this.timer=0;
			}
			
			this.timer=setTimeout("Tooltip.toggleVis('"+this.tipID+"', 'hidden')",this.hideDelay);
			
			if(this.followMouse)
				dw_event.remove(document,"mousemove",this.trackMouse,true);
				
			this.tip=null;
		},
		
		toggleVis:function(id,vis)
		{
			var el=document.getElementById(id);
			
			if(el)
				el.style.visibility=vis;
		},
		
		trackMouse:function(e)
		{
			e=dw_event.DOMit(e);
			Tooltip.positionTip(e);
		}
	
	};
	
	var dw_Inf={};
	
	dw_Inf.fn=function(v)
	{
		return eval(v)
	};
				
	dw_Inf.fn('Tooltip.ttready=true;');