var tooltip=function(){
	var id = 'tt';
	var top = -20;
	var left = 5;
	var maxw = 250;
	var minw = 150;
	var basew = minw + 50;
	var speed = 90;
	var timer = 90;
	var endalpha = 90;
	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'}
			//[@add] 2009.4.20 inagaki
			if(tt.offsetWidth < minw){
				tt.style.width = basew + 'px'
			}
			//h = parseInt(tt.offsetHeight) + top;
			h = 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;

			//[@add] 2009.4.20 inagaki
			if(l + tt.offsetWidth > document.documentElement.clientWidth){
				l = l - tt.offsetWidth;
			}else{
				l = l + left;
			}
			if(ie){
				var mouseY = event.clientY;
			}else{
				//var mouseY = e.pageY - document.documentElement.scrollTop;
				var scrollY = document.body.scrollTop  || document.documentElement.scrollTop;
				var mouseY = e.pageY - scrollY;
			}
			if(mouseY + tt.offsetHeight > document.documentElement.clientHeight){
				u = u - tt.offsetHeight;
			}else{
				u = u - h;
			}

			tt.style.top = (u) + 'px';
			tt.style.left = l + '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);
		}
	};
}();