function videoBox_getPageScroll() {
	var yScroll;

	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
	} else if (document.body) {// all other Explorers
		yScroll = document.body.scrollTop;
	}

	arrayPageScroll = new Array('',yScroll) 
	return arrayPageScroll;
}

function videoBox_getPageSize(){
	
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	if (self.innerHeight) {	// all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){	
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}
    
    
	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
	return arrayPageSize;
}

function videoBox_getKey(e){
	if (e == null) { // ie
		keycode = event.keyCode;
	} else { // mozilla
		keycode = e.which;
	}
	key = String.fromCharCode(keycode).toLowerCase();
	
	if(key == 'x'){ videoBox_hideVideobox(); }
}

function videoBox_listenKey () {	document.onkeypress = videoBox_getKey; }

function videoBox(videoSrc, caption) {
	var arrayPageSize = videoBox_getPageSize();
	var arrayPageScroll = videoBox_getPageScroll();
	
	var selects = document.getElementsByTagName("select");
    for(i = 0; i < selects.length; ++i)
        selects[i].style.visibility = "hidden";
	
    var videobox = document.getElementById('videobox');
    var videoboxTop = arrayPageScroll[1] + ((arrayPageSize[3] - 385) / 2);
	var videoboxLeft = ((arrayPageSize[0] - 510) / 2);
	videobox.style.top = (videoboxTop < 0) ? '0' : videoboxTop + 'px';
	videobox.style.left = (videoboxLeft < 0) ? '0' : videoboxLeft + 'px';
	videobox.style.display = 'block';
    
	var overlay = document.getElementById('overlay');
	overlay.style.height = (arrayPageSize[1] + 'px');
	overlay.style.display = 'block';
	
	var playerObj = document.getElementById('videoboxPlayer');
	if(playerObj) videobox.removeChild(playerObj);
	
	var captionObj = document.getElementById('videoboxCaption');
	if(captionObj) videobox.removeChild(captionObj);
	
	var downloadObj = document.getElementById('videoboxDownload');
	if(downloadObj) videobox.removeChild(downloadObj);
	
	
	playerObj = document.createElement('div');
	playerObj.id = 'videoboxPlayer';
	playerObj.appendChild(document.createTextNode('Sorry, but your browser is not capable of viewing this file; you will need install Flash 9.0 or later if you wish to view this content.'));
	videobox.appendChild(playerObj);
	swfobject.embedSWF(
		'/bin/w/i/player.swf', 'videoboxPlayer', '496', '311', '9.0.0', null, null,
		{ FlashVars: 'file=' + videoSrc + '&skin=/bin/m/z/modieus.swf&autostart=true&stretching=fill', allowFullScreen: true }
	);
	
	if(caption) {
		captionObj = document.createElement('p');
		captionObj.id = 'videoboxCaption';
		captionObj.appendChild(document.createTextNode(caption));
		videobox.appendChild(captionObj);
	}
	
	downloadObj = document.createElement('a');
	downloadObj.id = 'videoboxDownload';
	downloadObj.href = videoSrc;
	downloadObj.appendChild(document.createTextNode('Download Video'));
	videobox.appendChild(downloadObj);
	
    videoBox_listenKey();
	return false;
}

function videoBox_hideVideobox() {
    document.onkeypress = '';
    
	document.getElementById('overlay').style.display = 'none';
	document.getElementById('videobox').style.display = 'none';
    
	var playerObj = document.getElementById('videoboxPlayer');
	if(playerObj) document.getElementById('videobox').removeChild(playerObj);
	
	var selects = document.getElementsByTagName('select');
    for(i = 0; i < selects.length; ++i)
		selects[i].style.visibility = 'visible';
}

function videoBox_initVideobox() {
	var objBody = document.getElementsByTagName("body").item(0);
    
	var objOverlay = document.createElement("div");
	objOverlay.setAttribute('id','overlay');
	objOverlay.onclick = function() {
	    videoBox_hideVideobox();
	    return false;
	}
	objOverlay.style.display = 'none';
	objOverlay.style.top = '0';
	objOverlay.style.left = '0';
	objOverlay.style.zIndex = '90';
 	objOverlay.style.width = '100%';
	
	objBody.insertBefore(objOverlay, objBody.firstChild);
	
	var arrayPageSize = videoBox_getPageSize();
	var arrayPageScroll = videoBox_getPageScroll();
    
	var objVideobox = document.createElement("div");
	objVideobox.setAttribute('id','videobox');
	objVideobox.style.display = 'none';
	objVideobox.style.zIndex = '100';
	
	var objClose = document.createElement('a');
	var objCloseImg = document.createElement('img');
	objCloseImg.src = '/bin/k/e/close.gif';
	objCloseImg.alt = 'Close';
	objCloseImg.width = 13;
	objCloseImg.height = 13;
	objClose.id = 'videoboxClose';
	objClose.appendChild(objCloseImg);
	objClose.href = 'javascript:videoBox_hideVideobox()';
	objClose.title = 'Close This Window';
	objVideobox.appendChild(objClose);
	
	objBody.insertBefore(objVideobox, objOverlay.nextSibling);
	
	var allLinks = document.getElementsByTagName('a');
	for(var i = 0; i < allLinks.length; ++i)
		if(allLinks[i].href && allLinks[i].href.substr(allLinks[i].href.length - 4).toLowerCase() == '.flv')
			allLinks[i].onclick = function() { return videoBox(this.href, this.title); };
}

if(window.addEventListener)  window.addEventListener('load', videoBox_initVideobox, false);
else if(window.attachEvent)  window.attachEvent('onload', videoBox_initVideobox);