/*
* JTip
* By Cody Lindley (http://www.codylindley.com)
* Under an Attribution, Share Alike License
* JTip is built on top of the very light weight jquery library.
 
* Modifications by Rey Bango and Karl Swedberg
*/

//on page load (as soon as it is ready) call JT_init
$(document).ready(JT_init);
function JT_init() {
    // 9/21/06 - Rey Bango added hide() method to correct an issue with FF
    $("a.jTip")
	  .wrap('<span style="position:absolute;"></span>')
	  .click(function() { return false })
	  .click(function() { JT_show(this.href, this.id, this.name) });
    $("html, body")
	  .click(function() {
	      $('#JT, #JT_arrow_left, #JT_arrow_right').hide().remove();
	  })
}

function pageLoad(sender, args) {
    $("a.jTip").wrap('<span style="position:absolute;"></span>').click(function() { return false }).click(function() { JT_show(this.href, this.id, this.name) });
    $("html, body").click(function() { $('#JT, #JT_arrow_left, #JT_arrow_right').hide().remove(); });
}


function JT_show(url, linkId, title) {
    $('#JT, #JT_arrow_left, #JT_arrow_right').hide().remove();
    if (title == false) title = "&nbsp;";
    var de = document.documentElement;
    var w = self.innerWidth || (de && de.clientWidth) || document.body.clientWidth;
    var hasArea = w - getAbsoluteLeft(linkId);
    var clickElementy = getAbsoluteTop(linkId) - 3; //set y position

    var queryString = url.replace(/^[^\?]+\??/, '');
    var params = parseQuery(queryString);
    if (params['width'] === undefined) { params['width'] = 250 };
    if (params['link'] !== undefined) {
        $('#' + linkId).bind('click', function() { window.location = params['link'] });
        $('#' + linkId).css('cursor', 'pointer');
    }

    if (hasArea > ((params['width'] * 1) + 75)) {
        $("body").append("<div id='JT' style='width:" + params['width'] * 1 + "px'><div id='JT_close_left'>" + title + "</div><div id='JT_copy'><div class='JT_loader'><div></div></div>"); //right side
        $('body').append('<div id="JT_arrow_left"></div>');
        var arrowOffset = getElementWidth(linkId) + 11;
        var clickElementx = getAbsoluteLeft(linkId) + arrowOffset; //set x position
        $('#JT_arrow_left').css({ left: (clickElementx - 10) + "px", top: clickElementy + "px" });
    } else {
        $("body").append("<div id='JT' style='width:" + params['width'] * 1 + "px'><div id='JT_close_right'>" + title + "</div><div id='JT_copy'><div class='JT_loader'><div></div></div>"); //left side
        $('body').append('<div id="JT_arrow_right"></div>');
        var clickElementx = getAbsoluteLeft(linkId) - ((params['width'] * 1) + 20); //set x position
        $('#JT_arrow_right').css({ left: (getAbsoluteLeft(linkId) - 20) + "px", top: clickElementy + "px" });
    }
    if ($.browser.msie) {
        $('#JT').prepend('<iframe id="jTipiFrame"></iframe>'); // iframe for IE select box z-index issue
        $('#jTipiFrame').width((params['width'] * 1) + "px");
    }
    $('#JT').css({ left: clickElementx + "px", top: clickElementy + "px" });

    $('#JT_copy').load(url, function() {
        //if jtip goes to left side and is partially cut off at left of doc...	  
        if ($('#JT_arrow_right') && clickElementx < 0) {
            var JT_width = (getAbsoluteLeft(linkId) - 22);
            $('#JT').css({ left: 2, width: JT_width }); //adjust width to fit
        }
        //get the height of the jtip after loading it
        var jtip_height = $('#JT').height();
        //adjust the top of jTip
        move_jtip();
        if ((scroll_position + window_height) - clickElementy < jtip_height) {
            var adjusted_top = (window_height - jtip_height) - 6 + scroll_position;
            if (adjusted_top - scroll_position < 0) {
                $('#JT').css({ top: scroll_position + 1 });
            } else {
                $('#JT').css({ top: adjusted_top });
            }
        }
    }); // end .load()
    $('#JT').show();
} // end JT_show()

function getElementWidth(objectId) {
    x = document.getElementById(objectId);
    return x.offsetWidth;
}

function getAbsoluteLeft(objectId) {
    // Get an object left position from the upper left viewport corner
    o = document.getElementById(objectId)
    oLeft = o.offsetLeft            // Get left position from the parent object
    while (o.offsetParent != null) {   // Parse the parent hierarchy up to the document element
        oParent = o.offsetParent    // Get parent object reference
        oLeft += oParent.offsetLeft // Add parent left position
        o = oParent
    }
    return oLeft
}

function getAbsoluteTop(objectId) {
    // Get an object top position from the upper left viewport corner
    o = document.getElementById(objectId);
    oTop = 0;
    if (o.offsetParent) {
        o = o.offsetParent;
    }
    while (o) { // Parse the parent hierarchy up to the document element
        oTop += o.offsetTop; // Add parent top position
        o = o.offsetParent;
    }
    return oTop
}

function parseQuery(query) {
    var Params = new Object();
    if (!query) return Params; // return empty object
    var Pairs = query.split(/[;&]/);
    for (var i = 0; i < Pairs.length; i++) {
        var KeyVal = Pairs[i].split('=');
        if (!KeyVal || KeyVal.length != 2) continue;
        var key = unescape(KeyVal[0]);
        var val = unescape(KeyVal[1]);
        val = val.replace(/\+/g, ' ');
        Params[key] = val;
    }
    return Params;
}
function move_jtip() {
    if (window.innerHeight) {
        scroll_position = window.pageYOffset;
        window_height = window.innerHeight;
    }
    else if (document.documentElement && document.documentElement.scrollTop) {
        scroll_position = document.documentElement.scrollTop;
        window_height = document.documentElement.clientHeight;
    }
    else if (document.body) {
        scroll_position = document.body.scrollTop;
        window_height = document.body.clientHeight;
    }
}

function blockEvents(evt) {
    if (evt.target) {
        evt.preventDefault();
    } else {
        evt.returnValue = false;
    }
}