/*

Sweet Titles (c) Creative Commons 2005

http://creativecommons.org/licenses/by-sa/2.5/

Author: Dustin Diaz | http://www.dustindiaz.com

*/

var sweetTitles = { 

	xCord : 0,								// @Number: x pixel value of current cursor position

	yCord : 0,								// @Number: y pixel value of current cursor position

	tipElements : ['a','abbr','acronym'],	// @Array: Allowable elements that can have the toolTip

	obj : Object,							// @Element: That of which you're hovering over

	tip : Object,							// @Element: The actual toolTip itself

	active : 0,								// @Number: 0: Not Active || 1: Active

	init : function() {

		if ( !document.getElementById ||

			!document.createElement ||

			!document.getElementsByTagName ) {

			return;

		}

		var i,j;

		this.tip = document.createElement('div');

		this.tip.id = 'toolTip';

		document.getElementsByTagName('body')[0].appendChild(this.tip);

		this.tip.style.top = '0';

		this.tip.style.visibility = 'hidden';

		var tipLen = this.tipElements.length;

		for ( i=0; i<tipLen; i++ ) {

			var current = document.getElementsByTagName(this.tipElements[i]);

			var curLen = current.length;

			for ( j=0; j<curLen; j++ ) {

				addEvent(current[j],'mouseover',this.tipOver);

				addEvent(current[j],'mouseout',this.tipOut);

				current[j].setAttribute('tip',current[j].title);

				current[j].removeAttribute('title');

			}

		}

	},

	updateXY : function(e) {

		if ( document.captureEvents ) {

			sweetTitles.xCord = e.pageX;

			sweetTitles.yCord = e.pageY;

		} else if ( window.event.clientX ) {

			sweetTitles.xCord = window.event.clientX+document.documentElement.scrollLeft;

			sweetTitles.yCord = window.event.clientY+document.documentElement.scrollTop;

		}

	},

	tipOut: function() {

		if ( window.tID ) {

			clearTimeout(tID);

		}

		if ( window.opacityID ) {

			clearTimeout(opacityID);

		}

		sweetTitles.tip.style.visibility = 'hidden';

	},

	checkNode : function() {

		var trueObj = this.obj;

		if ( this.tipElements.inArray(trueObj.nodeName.toLowerCase()) ) {

			return trueObj;

		} else {

			return trueObj.parentNode;

		}

	},

	tipOver : function(e) {

		sweetTitles.obj = this;

		tID = window.setTimeout("sweetTitles.tipShow()",500);

		sweetTitles.updateXY(e);

	},

	tipShow : function() {		

		var scrX = Number(this.xCord);

		var scrY = Number(this.yCord);

		var tp = parseInt(scrY+15);

		var lt = parseInt(scrX+10);

		var anch = this.checkNode();

		var addy = '';

		var access = '';

		if ( anch.nodeName.toLowerCase() == 'a' ) {

			addy = (anch.href.length > 25 ? anch.href.toString().substring(0,25)+"..." : anch.href);

			var access = ( anch.accessKey ? ' <span>['+anch.accessKey+']</span> ' : '' );

		} else {

			addy = anch.firstChild.nodeValue;

		}

		this.tip.innerHTML = "<p>"+anch.getAttribute('tip')+"<em>"+access+addy+"</em></p>";

		if ( parseInt(document.documentElement.clientWidth+document.documentElement.scrollLeft) < parseInt(this.tip.offsetWidth+lt) ) {

			this.tip.style.left = parseInt(lt-(this.tip.offsetWidth+10))+'px';

		} else {

			this.tip.style.left = lt+'px';

		}

		if ( parseInt(document.documentElement.clientHeight+document.documentElement.scrollTop) < parseInt(this.tip.offsetHeight+tp) ) {

			this.tip.style.top = parseInt(tp-(this.tip.offsetHeight+10))+'px';

		} else {

			this.tip.style.top = tp+'px';

		}

		this.tip.style.visibility = 'visible';

		this.tip.style.opacity = '.1';

		this.tipFade(10);

	},

	tipFade: function(opac) {

		var passed = parseInt(opac);

		var newOpac = parseInt(passed+10);

		if ( newOpac < 80 ) {

			this.tip.style.opacity = '.'+newOpac;

			this.tip.style.filter = "alpha(opacity:"+newOpac+")";

			opacityID = window.setTimeout("sweetTitles.tipFade('"+newOpac+"')",20);

		}

		else { 

			this.tip.style.opacity = '.80';

			this.tip.style.filter = "alpha(opacity:80)";

		}

	}

};

function pageLoader() {

	sweetTitles.init();

}

addEvent(window,'load',pageLoader);