addOnload(externalLink);
addOnload(rolloverInit);
addOnload(randomImage);
addOnload(resizeWindow);

function addOnload(newFunction){
	var oldOnload = window.onload;
	
	if (typeof oldOnload == "function") {
		window.onload = function() {
			if (oldOnload) {
				oldOnload();
			}
		
			newFunction();
		}
	} else {
		window.onload = newFunction;
	}
}

function resizeWindow(){
	self.resizeTo(795,665)
}

/* Initiates and Preforms Rollover Action */
function rolloverInit(){
	for (var i=0; i<document.images.length; i++){
		if(document.images[i].parentNode.tagName == "A"){
			setupRollover(document.images[i]);
		}
	}
	
}

function setupRollover(thisImage){
	thisImage.outImage = new Image();
	thisImage.outImage.src = thisImage.src;
	thisImage.onmouseout = rollOut;

	thisImage.overImage = new Image();
	thisImage.overImage.src = "images/" + thisImage.id + "-on.gif";
	thisImage.onmouseover = rollOver;
}

function rollOver(){
	this.src = this.overImage.src;
}

function rollOut(){
	this.src = this.outImage.src;
}



/* Selects Random Image On Front Page */
function randomImage() {
	if (!document.getElementById) return;
	var randomImageArray = new Array("images/front-page-set-one.jpg", "images/front-page-set-two.jpg");
	
	randomNum = Math.floor((Math.random() * randomImageArray.length));
	document.getElementById("getRandomImage").src = randomImageArray[randomNum];
}



/* Replace [target="_blank"] */
function externalLink(){
	if (document.getElementsByTagName)
	var anchors = document.getElementsByTagName("a");
		for (var i=0; i < anchors.length; i++) { 
 			var anchor = anchors[i];
 			if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external")
 				anchor.target = "_blank";
 		}

}