function _id(id){
	try{ return document.getElementById(id); }catch(e){ return undefined; }
}
function getElementPosition(el){
	var x=0; var y=0;
	while(el.offsetParent){
		x+=el.offsetLeft; y+=el.offsetTop;
		el=el.offsetParent;
	}
	x+=el.offsetLeft; y+=el.offsetTop;
	return { x:x, y:y };
}




var tooltip=function(){
	var id = 'tt';
	var top = 3;
	var left = 3;
	var maxw = 300;
	var speed = 10;
	var timer = 20;
	var endalpha = 95;
	var alpha = 0;
	var tt,t,c,b,h;
	var ie = document.all ? true : false;
	return{
		show:function(v,w){
			if(tt == null){
				tt = document.createElement('div');
				tt.setAttribute('id',id);
				t = document.createElement('div');
				t.setAttribute('id',id + 'top');
				c = document.createElement('div');
				c.setAttribute('id',id + 'cont');
				b = document.createElement('div');
				b.setAttribute('id',id + 'bot');
				tt.appendChild(t);
				tt.appendChild(c);
				tt.appendChild(b);
				document.body.appendChild(tt);
				tt.style.opacity = 0;
				tt.style.filter = 'alpha(opacity=0)';
				document.onmousemove = this.pos;
			}
			tt.style.display = 'block';
			c.innerHTML = v;
			tt.style.width = w ? w + 'px' : 'auto';
			if(!w && ie){
				t.style.display = 'none';
				b.style.display = 'none';
				tt.style.width = tt.offsetWidth;
				t.style.display = 'block';
				b.style.display = 'block';
			}
			if(tt.offsetWidth > maxw){tt.style.width = maxw + 'px'}
			h = parseInt(tt.offsetHeight) + top;
			clearInterval(tt.timer);
			tt.timer = setInterval(function(){tooltip.fade(1)},timer);
		},
		pos:function(e){
			var u = ie ? event.clientY + document.documentElement.scrollTop : e.pageY;
			var l = ie ? event.clientX + document.documentElement.scrollLeft : e.pageX;
			tt.style.top = (u - h) + 'px';
			tt.style.left = (l + left) + 'px';
		},
		fade:function(d){
			var a = alpha;
			if((a != endalpha && d == 1) || (a != 0 && d == -1)){
				var i = speed;
				if(endalpha - a < speed && d == 1){
					i = endalpha - a;
				}else if(alpha < speed && d == -1){
					i = a;
				}
				alpha = a + (i * d);
				tt.style.opacity = alpha * .01;
				tt.style.filter = 'alpha(opacity=' + alpha + ')';
			}else{
				clearInterval(tt.timer);
				if(d == -1){tt.style.display = 'none'}
			}
		},
		hide:function(){
			clearInterval(tt.timer);
			tt.timer = setInterval(function(){tooltip.fade(-1)},timer);
		}
	};
}();




window.compatibilizeEvent=function(e){
	if (e.srcElement && !e.target) {
		e.charCode=(e.type=="keypress")? e.keyCode : 0;
		e.isChar=(e.charCode>0);
		e.eventPhase=2;
		e.preventDefault=e.preventDefault || function(){
			this.returnValue=false;
		};
		e.stopPropagation=e.stopPropagation || function(){
			this.cancelBubble=true;
		};
		if(e.type=="mouseout"){
			e.relatedTarget=e.toElement;
		}else if(e.type=="mouseover"){
			e.relatedTarget=e.fromElement;
		}
		e.target=e.srcElement;
		e.time=(new Date).getTime();
		e.pageX=e.clientX+document.body.scrollLeft;
		e.pageY=e.clientY+document.body.scrollTop;
	}
	return e;
}
window.EventObject=function(){
	if (window.event) {
		return compatibilizeEvent(window.event);
	} else {
		return EventObject.caller.arguments[0];
	}
}
window.addListener=function(o, e, h){
	try{
		o.attachEvent("on"+e, h);
	}catch(a){
		o.addEventListener(e, h, false);
	}
}
window.removeListener=function(o, e, h){
	try{
		o.detachEvent("on"+e, h);
	}catch(a){
		o.removeEventListener(e, h, false);
	}
}
document.addListener=function(e, h){
	addListener(document, e, h);
}
document.removeListener=function(e, h){
	removeListener(document, e, h);
}



// funções de rolagem
_rolando={};
_rolando.intervalo=false;
_rolando.dir=0;
_rolando.vel=10;
_rolando.outerObj=false;
_rolando.innerObj=false;
function rolagem(){
	var visW=_rolando.outerObj.offsetWidth;
	var contW=_rolando.innerObj.offsetWidth;
	var pos=_rolando.innerObj.posAtual;
	// hack para larguras no mozilla
	if(navigator.appName.toLowerCase().indexOf("netscape")>-1){
		contW-=pos;
	}
	var newPos=pos-(_rolando.dir*_rolando.vel);
	var maxPos=-(contW-visW);
	newPos=(newPos>0)? 0 : newPos;
	newPos=(newPos<maxPos)? maxPos : newPos;
	_rolando.innerObj.style.marginLeft=newPos+"px";
	_rolando.innerObj.posAtual=newPos;
}
function rolar(oOb, iOb, dir, vel){
	if(_rolando.intervalo){
		clearInterval(_rolando.intervalo);
		_rolando.intervalo=false;
	}
	if(dir==0 || iOb.offsetWidth < oOb.offsetWidth){
		return;
	}
	vel=vel||10;
	_rolando.dir=dir;
	_rolando.vel=vel;
	_rolando.outerObj=oOb;
	_rolando.innerObj=iOb;
	if(iOb.posAtual===undefined){
		iOb.posAtual=getElementPosition(oOb).x-getElementPosition(iOb).x;
	}
	rolagem();
	window._rolando.intervalo=setInterval(rolagem, 50);
}


var _f=function(){
	var e=EventObject();
	if(e.target.tagName && e.target.getAttribute("rolagem")){
		var att=e.target.getAttribute("rolagem").replace(/ /g, "").split(",");
		var outerObj=document.getElementById(att[0]);
		var innerObj=document.getElementById(att[1]);
		var vel=att[3];
		switch(att[2]){
			case "esq":
				dir=-1;
				break;
			case "dir":
				dir=1;
				break;
			default:
				dir=0;
		}
		e.preventDefault();
		//e.stopPropagation();
		rolar(outerObj, innerObj, dir, vel);
	}
}
document.addListener("mousedown", _f);

var _f=function(){
	rolar(null, null, 0);
}
document.addListener("mouseup", _f);