var tooltip=function(){
	var id = 'tt';
	var top = 3;
	var left = 3;
	var maxw = 300;
	var speed = 100;
	var timer = 10;
	var endalpha = 100;
	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);
		}
	};
}();