////////////// NAVIGATION DISPLAY ////////////////
function initNav() {
	imgs = document.getElementsByTagName('IMG');
	for (i=0;i<imgs.length;i++) {
		child = imgs[i];
		if (child.src.indexOf('btn-')!=-1) {
			child.originalSrc = child.src;
			child.onmouseover = function() {
				this.src = this.originalSrc.replace('a.gif','b.gif');
			}
			child.onmouseout = function() {
				this.src = this.originalSrc;
			}
			addPreload(child.originalSrc.replace('a.gif','b.gif'));
			addPreload(child.originalSrc);
		}
	}
}



/////////////// TRANSPARENCY EFFECTS ////////////////
shareIconsData = document.getElementById('shareIcons');
for (i=0;i<shareIconsData.childNodes.length;i++) {
	child1 = shareIconsData.childNodes[i];
	for (j=0;j<child1.childNodes.length;j++) {
		child2 = child1.childNodes[j];
		if (child2.src) {
			child2.className = 'trans';
			child2.onmouseover = function() {
				this.className = 'opaque';
			}
			child2.onmouseout = function() {
				this.className = 'trans';
			}
		}
	}
}





/////////////// PRELOAD IMAGES ////////////////////
preloadArray = new Array();
function addPreload(imgSrc) { preloadArray[preloadArray.length] = imgSrc; }
var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		for (i=0; i<preloadArray.length; i++) eval("preloadImage"+i+" = newImage('"+preloadArray[i]+"');");
		preloadFlag = true;
	}
}
function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}




/////////////// STREAM BOX TOGGLE
function streamVideo() {
	el = document.getElementById('streamBox');
	el.style.display = (el.style.display=='none') ? 'block' : 'none';
}




function init() {
	initNav();
	preloadImages();
}

onload = init;