/*
Sweet Titles (c) Creative Commons 2005
http://creativecommons.org/licenses/by-sa/2.5/
Author: Dustin Diaz | http://www.dustindiaz.com
*/
if (window.navigator.userAgent.toString().toLowerCase().indexOf("msie") < 0) {
    HTMLElement.prototype.__defineGetter__("innerText",
        function() {
            var anyString = "";
            var childS = this.childNodes;
            for (var i = 0; i < childS.length; i++) {
                if (childS[i].nodeType == 1)
                    anyString += childS[i].tagName == "BR" ? '\n' : childS[i].innerText;
                else if (childS[i].nodeType == 3)
                    anyString += childS[i].nodeValue;
            }
            return anyString;
        }
      );
    HTMLElement.prototype.__defineSetter__("innerText",
        function(sText) {
            this.textContent = sText;
        }
      );
}

function getUserInfo(sender, userid) {
    if (!sender.getAttribute('tip'))
        sender.setAttribute('tip', Edulife.BLL.AskPage.getuserInfo(userid).value);
}

function getTopicInfo(sender, topicid) {
    if (!sender.getAttribute('tip'))
        sender.setAttribute('tip', Edulife.BLL.AskPage.gettopicInfo(topicid).value);
}

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);
                if (!current[j].getAttribute('tip'))
                    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);
            addy = anch.href;
            var access = (anch.accessKey ? ' <span>[' + anch.accessKey + ']</span> ' : '');
        } else if (anch.nodeName.toLowerCase() == 'abbr' || anch.nodeName.toLowerCase() == 'acronym') {
            addy = anch.firstChild.nodeValue;
        }
        //this.tip.innerHTML = "<p>" + anch.getAttribute('tip') + "<em>" + access + addy + "</em></p>";
        this.tip.innerHTML = "<p>" + anch.getAttribute('tip') + "</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';
        }
        if (this.tip.innerText) {
            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);