// alias to jQuery library, function noConflict release control of the $ variable 
var $j = jQuery.noConflict();

/**************************
    GLOBAL FUNCTIONALITY
**************************/

// global settings
function setupGlobal()
{
    // blur focus then user click on <a> element
    $j("a").focus(function(){$j(this).blur();});
    // the same for object with id searchBoxBtn
    $j("#searchBoxBtn").focus(function(){$j(this).blur();}); 
}

/**************************
   COMMUNITY BUTTONS
**************************/

// function change image source for community buttons then user hover it with mouse
function setupCommunityButtons()
{
    // set hover action for flickr, twitter, facebook and rss button
    $j("#flickrBtn, #twitterBtn, #facebookBtn, #rssBtn").hover(
        function()
        {
            $j(this).css("background-position", "0px -26px");
        },
        function()
        {
            $j(this).css("background-position", "0px 0px"); 
        }
    );    
} // end of function setupCommunityButtons


/**************************
   TOOLTIP TEXT
**************************/

function setupToolTipText()
{  
    // when user move cursor on element witch class textTooltipCenterTop
    // fallowing code will be executed, one function when the mouse is move on
    // element, and one function when mouse cursor is moved out,
    //       
    $j(".textTooltipCenterTop, .textTooltipLeftTop, .textTooltipRightTop").hover(function(e)
    {
        var yoffset = -10;
        var tip = $j(this).find(".desc").html();

        // adding to page text preview container
        $j("body").append(
            "<div id='textPreview'><div id='textPreviewDesc'></div></div>");
        
        // set tip text    
        $j("#textPreviewDesc").html(tip);
        // get width off tip container
        var textToolTipWidth = $j("#textPreview").width();
                
        // check the class name, and calculate display offset
        var xoffset = 0;
        if($j(this).hasClass("textTooltipCenterTop"))
        {
            xoffset = -Math.round(textToolTipWidth/2)
        } else
        if($j(this).hasClass("textTooltipLeftTop"))
        {
            xoffset = -textToolTipWidth;
        } else
        if($j(this).hasClass("textTooltipRightTop"))
        {
            xoffset = 0;
        }                
 
        // set position of tip container and animte it
        $j("#textPreview").css("width", textToolTipWidth+"px")
            .css("left", (e.pageX + xoffset) + "px")
            .css("top", (e.pageY + yoffset - $j("#textPreview").height()) + "px")
            .css("visibility", "visible")
            .css("opacity", "0.0")
            .animate({opacity: 1.0}, 400);                                   
    },
    // when hover is out, we need to remove #textPreview container from page
    function()
    {
        $j("#textPreview").remove();
    });    
    
    // bind function to mouse move event, we move the tooltip with mouse cursor
    $j(".textTooltipCenterTop, .textTooltipLeftTop, .textTooltipRightTop").mousemove(
    function(e)
    {
        var yoffset = -10;
        var textToolTipWidth = $j("#textPreview").width();
         
        // check the class name, and calculate display offset
        var xoffset = 0;
        if($j(this).hasClass("textTooltipCenterTop"))
        {
            xoffset = -Math.round(textToolTipWidth/2)
        } else
        if($j(this).hasClass("textTooltipLeftTop"))
        {
            xoffset = -textToolTipWidth;
        } else
        if($j(this).hasClass("textTooltipRightTop"))
        {
            xoffset = 0;
        }        
        
        // set postion of tip container        
        $j("#textPreview")
            .css("top",(e.pageY + yoffset - $j("#textPreview").height()) + "px")
            .css("left",(e.pageX + xoffset) + "px");
    });
}; // end of function setupToolTipText