// JavaScript Document
function prepareMainMenu(){
	for(var i = 0; i < 5; i++){
		var linkButton = document.getElementById("mainMenuBtn" + (i + 1));
		linkButton.onmouseover = rollOver;
		linkButton.onmouseout = rollOut;
	}
}

function rollOver(){
	var id = this.id.slice(11);
	var middleBar = document.getElementById("pageMiddleBorder");
	middleBar.style.backgroundImage = "url(../images/rollover" + id + ".jpg)";
}

function rollOut(){
	var middleBar = document.getElementById("pageMiddleBorder");
	middleBar.style.backgroundImage = "url()";
}