///<reference path="Core.js" />

var Tooltips =
{
    init: function() {
        var links = document.getElementsByTagName("a");

        for (var i = 0; i < links.length; i++) {
            var title = links[i].getAttribute("title");

            if (title && title.length > 0) {
                Core.addEventListener(links[i], "mouseover", Tooltips.showTipListener);
                Core.addEventListener(links[i], "focus", Tooltips.showTipListener);
                Core.addEventListener(links[i], "mouseout", Tooltips.hideTipListener);
                Core.addEventListener(links[i], "blur", Tooltips.hideTipListener);
            } // end if

        } // end for
    }, // end init function

    showTip: function(link) {
        Tooltips.hideTip(link);

        var tip = document.createElement("span");
        tip.className = "tooltip";
        var tipText = document.createTextNode(link.title);
        tip.appendChild(tipText);
        link.appendChild(tip);

        link._tooltip = tip;
        link.title = "";

        // Fix for Safari2/Opera9 repaint issue
        document.documentElement.style.position = "relative";
    }, // end function showTip

    hideTip: function(link) {
        if (link._tooltip) {
            link.title = link._tooltip.childNodes[0].nodeValue;
            link.removeChild(link._tooltip);
            link._tooltip = null;

            // Fix for Safari2/Opera9 repaint issue
            document.documentElement.style.position = "static";
        } // end if
    }, // end function hideTip

    showTipListener: function(event) {
        var link = this;
        this._timer = setTimeout(function() { Tooltips.showTip(link); }, 500);
        Core.preventDefault(event);
    }, // end function showTipListener

    hideTipListener: function(event) {
        clearTimeout(this._timer);
        Tooltips.hideTip(this);
    } // end function hideTipListener
};      // end Tooltips

Core.start(Tooltips);