var tooltip=function(){
	var id = 'tt';
	var top = 3;
	var left = 3;
	var maxw = 600;
	var speed = 20;
	var timer = 20;
	var endalpha = 100; //95;
	var alpha = 0;
	var tt,t,c,b,h;
	var ie = document.all ? true : false;
	return{
		show:function(v,w){
			if(ie && tt != null && tt.style.display != 'none')
				return;
			
			if(tt == null){
				tt = document.createElement('div');
				tt.style.display = 'none';
				tt.setAttribute('id',id);
				t = document.createElement('div');
				t.setAttribute('id',id + 'top');
				l = document.createElement('div');
				l.setAttribute('id',id + 'left');
				c = document.createElement('div');
				c.setAttribute('id',id + 'cont');
				b = document.createElement('div');
				b.setAttribute('id',id + 'bot');
				tt.appendChild(l);
				l.appendChild(t);
				t.appendChild(c);
				tt.appendChild(b);
				document.body.appendChild(tt);
				if(!ie)
				{
					tt.style.opacity = 0;
					tt.style.filter = 'alpha(opacity=0)';
				}
				
				document.onmousemove = this.pos;
			}
			
			
			b.style.width='auto'; // this really is necessary, believe it!
			tt.style.width = w ? w + 'px' : 'auto';
			c.innerHTML = v;
			tt.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);
			
			if(ie)
			{
				var u = event.clientY + document.documentElement.scrollTop;
				var l = event.clientX + document.documentElement.scrollLeft;
				
				b.style.width=tt.offsetWidth + 'px';
				
				tt.style.top = (u - h) + 'px';
				tt.style.left = (l + left) + 'px';
			}
		},
		pos:function(e){
			var u = ie ? event.clientY + document.documentElement.scrollTop : e.pageY;
			var l = ie ? event.clientX + document.documentElement.scrollLeft : e.pageX;
			
			h = parseInt(tt.offsetHeight) + top;
			
			b.style.width='auto';
			if(tt.offsetWidth > maxw){tt.style.width = maxw + 'px'}
			
			b.style.width=tt.offsetWidth + 'px';

			tt.style.top = (u - h) + 'px';
			tt.style.left = (l + left) + 'px';
		},
		fade:function(d){
			
			tt.style.width='auto';
			if(tt.offsetWidth > maxw){tt.style.width = maxw + 'px'}
			b.style.width='auto';
			b.style.width=tt.offsetWidth + 'px';
				
			if(ie)
			{
				return;
			}
			
			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(){
			if(ie)
			{
				tt.style.display = 'none';
				return;
			}
			
			clearInterval(tt.timer);
			tt.timer = setInterval(function(){tooltip.fade(-1)},timer);
		}
	};
}();