/**
* add an event listener to an object
* @param object object to add event to
* @param string event type to add
* @param object function to execute
*/
function addEvent(obj, evType, fn)
{
    if (obj)
    {
        if (obj.addEventListener)
        {
            obj.addEventListener(evType, fn, true);
            return true;
        }
        else if (obj.attachEvent)
        {
            var r = obj.attachEvent("on" + evType, fn);
            return r;
        }
        else
        {
            return false;
        }
    }
}

/**
 * define spacer image used by alphapng functions
 */
var spacerImage = '/en_US/images/spacer.gif';

/**
 * fix alpha png backgrounds on a page (turn on transparency for IE)
 * Not needed for IE7 and Opera, but Opera passes the document.all test, so we need to put this in there as well
 * @param string support html tag (i.e. "DIV")
 */
function _fixAlphaPngBackground(htmltag)
{
	var src     = '';
    var ua      = '';
    var rpng    = new RegExp('url\\(([a-zA-Z0-9_/:-]+\.png)\\)');
    var rmsie   = new RegExp('msie');
    var rmac    = new RegExp('mac');

    if ((document.all) && (navigator.userAgent.toUpperCase().indexOf('MSIE 7') < 0) && (navigator.userAgent.toUpperCase().indexOf('OPERA') < 0))
    {
    	var l = document.getElementsByTagName(htmltag).length;
        for (var i = 0; i < l; i++)
        {
            src = document.getElementsByTagName(htmltag)[i].style.backgroundImage;
            ua  = navigator.userAgent.toLowerCase();

            if (src.match(rpng) && ua.match(rmsie) && !ua.match(rmac))
            {
                src = src.replace(rpng, '$1');
                document.getElementsByTagName(htmltag)[i].style.backgroundImage = 'none';
                document.getElementsByTagName(htmltag)[i].style.filter = 'progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=\'true\', sizingMethod=\'scale\', src=\'' + src + '\')';
            }
        }
    }
}

/**
 * fix alpha pngs on a page (turn on transparency for IE)
 * Not needed for IE7 and Opera, but Opera passes the document.all test, so we need to put this in there as well
 */
function fixAlphaPng()
{
	var src     = '';
    var ua      = '';
    var width   = '';
    var height  = '';
    var rpng    = new RegExp('\.png$');
    var rmsie   = new RegExp('msie');
    var rmac    = new RegExp('mac');

    if ((document.all) && (navigator.userAgent.toUpperCase().indexOf('MSIE 8') < 0) && (navigator.userAgent.toUpperCase().indexOf('OPERA') < 0))
    {
        for (var i = 0; i < document.getElementsByTagName('IMG').length; i++)
        {
            src     = document.getElementsByTagName('IMG')[i].getAttribute('src');
            ua      = navigator.userAgent.toLowerCase();
            width   = document.getElementsByTagName('IMG')[i].getAttribute('width');
            height  = document.getElementsByTagName('IMG')[i].getAttribute('height');

            if (src.match(rpng) && ua.match(rmsie) && !ua.match(rmac))
            {
            	document.getElementsByTagName('IMG')[i].setAttribute('src', spacerImage);
                document.getElementsByTagName('IMG')[i].style.filter = 'progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=\'true\', src=\'' + src + '\', sizingMethod=\'scale\')';
                document.getElementsByTagName('IMG')[i].style.width = width + 'px';
                document.getElementsByTagName('IMG')[i].style.height = height + 'px';
            }
        }

        _fixAlphaPngBackground('DIV');
        _fixAlphaPngBackground('TABLE');
        _fixAlphaPngBackground('TD');
    }
}

addEvent(window, 'load', fixAlphaPng);


function unblur() {
    this.blur();
}

function blurlinks() {
    if (!document.getElementById) return;
    thelinks = document.getElementsByTagName("a");
    for(i=0; i<thelinks.length; i++) {
        thelinks[i].onfocus = unblur;
    }
}

// Make sure the copyright year is up to date
function setCopyright()
{
    var el = document.getElementById("copyright");
    var year = new Date().getFullYear();
    el.innerHTML = year;
}

function thisMovie(movieName) {
	if (navigator.appName.indexOf("Microsoft") != -1) {
		return window[movieName];
	} else {
		return document[movieName];
	}
}
	
	
function showPopUp() {
	var newPopup = window.open('/en_US/videos.jsp','commercials','width=375,height=350,resizable=no,scollbars=no,toolbar=no,location=no,directories=no,status=no,menubar=no,copyhistory=no');
	newPopup.focus();
}