tooltip = {
  name : "tooltip",
  tipClass : "tip",
  offsetX : 0,
  offsetY : 15,
  tip : null
}

tooltip.init = function () {
	
	var tipNameSpaceURI = "http://www.w3.org/1999/xhtml";
	if(!tipContainerID){ var tipContainerID = "tooltip";}
	var tipContainer = document.getElementById(tipContainerID);

	if(!tipContainer) {
		tipContainer = document.createElementNS ? document.createElementNS(tipNameSpaceURI, "div") : document.createElement("div");
		tipContainer.setAttribute("id", tipContainerID);
		document.getElementsByTagName("body").item(0).appendChild(tipContainer);
	}

	if (!document.getElementById) return;
	this.tip = document.getElementById (this.name);
	if (this.tip) document.onmousemove = function (evt) {tooltip.move (evt)};

	elements = document.getElementsByTagName("*");
	if(elements)
	{
		month = document.getElementById('month').value;
		year = document.getElementById('year').value;
		for (var i = 0; i < elements.length; i ++)
		{	
			if(elements[i].className.indexOf('tip') != -1){
				a = elements[i];
				a.onmouseover = function() {if(!isNaN(this.innerHTML)) tooltip.show(xajax_get_events(parseInt(this.innerHTML), month, year))};
				a.onclick = function() {xajax_show_events(parseInt(this.innerHTML), month, year)};
				a.onmouseout = function() {tooltip.hide()};
			}
		}
	}
}

tooltip.move = function (evt) {
	var x=0, y=0;
	if (document.all) {//IE
		x = (document.documentElement && document.documentElement.scrollLeft) ? document.documentElement.scrollLeft : document.body.scrollLeft;
		y = (document.documentElement && document.documentElement.scrollTop) ? document.documentElement.scrollTop : document.body.scrollTop;
		x += window.event.clientX;
		y += window.event.clientY;
		
	} else {//Good Browsers
		x = evt.pageX;
		y = evt.pageY;
	}
	this.tip.style.left = (x + this.offsetX) + "px";
	this.tip.style.top = (y + this.offsetY) + "px";
}

tooltip.show = function (text) {
	if (!this.tip) return;
	this.tip.innerHTML = text;
	this.tip.style.display = "block";
}

tooltip.hide = function () {
	if (!this.tip) return;
	this.tip.innerHTML = "";
	this.tip.style.display = "none";
}

window.onload = function () {
	tooltip.init ();
}