function createHeaderArray(){
	hdir = "images/interface/photos/";
	fotos = new Array();
	
	fotos[0] = hdir + "photo01.jpg";
	fotos[1] = hdir + "photo02.jpg";
	fotos[2] = hdir + "photo03.jpg";
	fotos[3] = hdir + "photo04.jpg";
	fotos[4] = hdir + "photo05.jpg";
	fotos[5] = hdir + "photo06.jpg";
	fotos[6] = hdir + "photo07.jpg";
}

function randomImg(arrName,imgName){
	var ranNum = Math.round(Math.random() * (arrName.length - 1));
	document.images[imgName].src = arrName[ranNum];
}