var buttonFolder = "button_images/";

upSources = new Array("buttons_02.jpg","buttons_04.jpg","buttons_06.jpg","buttons_08.jpg");

overSources = new Array("buttons_02-over.jpg","buttons_04-over.jpg","buttons_06-over.jpg","buttons_08-over.jpg");


totalButtons = upSources.length;



function preload() {
	for ( x=0; x<totalButtons; x++ ) {
		buttonUp = new Image();
		buttonUp.src = buttonFolder + upSources[x];
		buttonOver = new Image();
		buttonOver.src = buttonFolder + overSources[x];
	}
}

function setOverImg(But, ID) {
	document.getElementById('button' + But + ID).src = buttonFolder + overSources[But-1];
}

function setOutImg(But, ID) {
	document.getElementById('button' + But + ID).src = buttonFolder + upSources[But-1];
}