var tooltip=function(){
	var id = 'tt';
	var top = 3;
	var left = 3;
	var maxw = 250;
	var speed = 10;
	var timer = 20;
	var endalpha = 83;
	var alpha = 0;
	var tt,t,c,b,h;
	var ie = document.all ? true : false;

	return{
		show:function(obj,v,w){
			if(tt == null){
				tt = document.createElement('div');
				tt.setAttribute('id',id);
				tt.style.top = '0px';
				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.getElementById(obj.id).onmousemove = this.pos;
			}
			document.getElementById(obj.id).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){
			if (window.innerHeight && window.scrollMaxY) {// Firefox
				yWithScroll = window.innerHeight + window.scrollMaxY;
			} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
				yWithScroll = document.body.scrollHeight;
			} else { // works in Explorer 6 Strict, Mozilla (not FF) and Safari
				yWithScroll = document.body.offsetHeight;
  			}
			var u = ie ? (event.clientY + document.documentElement.scrollTop) + f_scrollTop() : e.pageY; 
			var l = ie ? event.clientX + document.documentElement.scrollLeft : e.pageX;
			// var u = f_scrollTop();
			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);
		}
	};
}();

function f_scrollTop() {
	return f_filterResults (
		window.pageYOffset ? window.pageYOffset : 0,
		document.documentElement ? document.documentElement.scrollTop : 0,
		document.body ? document.body.scrollTop : 0
	);
}
function f_filterResults(n_win, n_docel, n_body) {
	var n_result = n_win ? n_win : 0;
	if (n_docel && (!n_result || (n_result > n_docel)))
		n_result = n_docel;
	return n_body && (!n_result || (n_result > n_body)) ? n_body : n_result;
}