// GLOBALS
// all headshots in directory "images/" index_bg1.jpg, index_bg2.jpg, etc.
var MAX_HEADSHOTS = 4;	// maximum number of backgrounds to randomly cycle thru
// END GLOBALS

function getObj(name) {
	var obj;
	
	if (document.getElementById) {
		obj = document.getElementById(name);
	} else if (document.all) {
		obj = document.all[name];
	} else {
		obj = document.layers[name];
	}

	return obj;
}

function getYear() {
	var curdate = new Date();
	return curdate.getFullYear();
}

function loadRandomBG() {
	var obj = getObj('IndexFrame');
	var index = (Math.floor(Math.random()*MAX_HEADSHOTS))+1;
	obj.style.backgroundImage = 'url(images/index_bg'+index+'.jpg)';
}

function loadMasterPic(filename, master_dir) {
	var masterFrame = getObj('MasterPicFrame');
	var gallery = '';
	
	switch (master_dir) {
		case 1: gallery = 'galleries/earth/masters/';
				break;
		case 2: gallery = 'galleries/wood/masters/'; 
				break;
		case 3: gallery = 'galleries/stone/masters/'; 
				break;
		case 4: gallery = 'galleries/fireplaces/masters/'; 
				break;
		case 5: gallery = 'galleries/paths/masters/'; 
				break;
		default: gallery = 'galleries/stone/masters/'; 
	}
	
	masterFrame.src = ''+gallery + filename;
}