var tipclick = {
    vertical_offset: '-3px',
    horizontal_offset: '-3px',
    delay_disappear: 250,
    delay_appear: 500,

    show: function(content, obj, e) {
        if (window.event) {
            event.cancelBubble = true;
        } else if (e.stopPropagation) {
            e.stopPropagation();
        }
        this._do_hide();
        var tooltip = document.getElementById("tipclick_div");
        tooltip.innerHTML = 'Contact TASS for analysis support.  Be prepared to provide data necessary to perform calculations. <a href="http://www.tassinc.com/contact/">For contact info click here.</a>';
        if ((e.type == "click" && tooltip.style.visibility == 'hidden') || e.type == "mouseover") {
            var self = this;
            this._show_handler = setTimeout(function() { self._do_show(); }, this.delay_appear);
        } else if (e.type == "click") {
            tooltip.style.visibility = 'hidden';
        }
        tooltip.x = this._get_pos_offset(obj, true);
        tooltip.y = this._get_pos_offset(obj, false);
        tooltip.style.left = tooltip.x - this._clear_browser_edge(obj, true) + "px";
        tooltip.style.top = tooltip.y - this._clear_browser_edge(obj, false) + obj.offsetHeight + "px";
        return true;
    },

    hide: function() {
        this._must_hide = true;
        var self = this;
        this._hide_handler = setTimeout(function() { self._do_hide(); }, this.delay_disappear);
        return true;
    },

    //---Private
    _show_handler: null,
    _hide_handler: null,
    _must_hide: true,

    _clear_tip: function() {
        if (typeof this._hide_handler != "undefined" || this._hide_handler !== null) {
            clearTimeout(this._hide_handler);
            delete (this._hide_handler);
        }
        if (typeof this._show_handler != "undefined" || this._show_handler !== null) {
            clearTimeout(this._show_handler);
            delete (this._show_handler);
        }
    },

    _get_pos_offset: function(what, is_left) {
        var total_offset = (is_left) ? what.offsetLeft : what.offsetTop;
        var parentEl = what.offsetParent;
        while (parentEl !== null) {
            total_offset = (is_left) ? total_offset + parentEl.offsetLeft : total_offset + parentEl.offsetTop;
            parentEl = parentEl.offsetParent;
        }
        return total_offset;
    },

    _clear_browser_edge: function(obj, is_horizontal) {
        var tooltip = document.getElementById("tipclick_div");
        var edge_offset = (is_horizontal) ? parseInt(this.horizontal_offset, 10) * -1 : parseInt(this.vertical_offset, 10) * -1;
        var is_ie = document.all && !window.opera;
        var window_edge, content_measure;
        if (is_ie) {
            var ie_body = this._ie_body();
        }
        if (is_horizontal) {
            window_edge = is_ie ? ie_body.scrollLeft + ie_body.clientWidth - 15 : window.pageXOffset + window.innerWidth - 15;
            content_measure = tooltip.offsetWidth;
            if (window_edge - tooltip.x < content_measure) {
                edge_offset = content_measure - obj.offsetWidth;
            }
        } else {
            window_edge = is_ie ? ie_body.scrollTop + ie_body.clientHeight - 15 : window.pageYOffset + window.innerHeight - 18;
            content_measure = tooltip.offsetHeight;
            if (window_edge - tooltip.y < content_measure) {
                edge_offset = content_measure + obj.offsetHeight;
            }
        }
        return edge_offset;
    },

    _ie_body: function() {
        return (document.compatMode && document.compatMode != "BackCompat") ? document.documentElement : document.body;
    },

    _do_show: function() {
        document.getElementById("tipclick_div").style.visibility = "visible";
    },

    _do_hide: function() {
        if (this._must_hide) {
            document.getElementById("tipclick_div").style.visibility = "hidden";
        }
        this._clear_tip();
    },

    _continue: function() {
        this._must_hide = false;
    },

    _stop: function() {
        this._must_hide = true;
        this.hide();
    }
};