function rollover(img) {
	var obj = document.getElementById(img);
	
	obj.src = 'images/' + img + '_on.jpg';
}

function rollout(img) {
	var obj = document.getElementById(img);
	
	obj.src = 'images/' + img + '_off.jpg';
}

function rollover_trans(img) {
	var obj = document.getElementById(img);
	
	obj.src = 'images/' + img + '_on.png';
}

function rollout_trans(img) {
	var obj = document.getElementById(img);
	
	obj.src = 'images/' + img + '_off.png';
}

function rollover_trans_upload(img) {
	var obj = document.getElementById(img);
	
	obj.src = 'images/uploads/image/' + img + '_on.png';
}

function rollout_trans_upload(img) {
	var obj = document.getElementById(img);
	
	obj.src = 'images/uploads/image/' + img + '_off.png';
}

function board_rollover(img) {
	var obj = new Array();
	var newImg = document.getElementById(img);
	
	obj = img.split('_');
	newImg.src = 'images/' + obj[0] + '_on.jpg';
}

function board_rollout(img) {
	var obj = new Array();
	var newImg = document.getElementById(img);
	
	obj = img.split('_');
	newImg.src = 'images/' + obj[0] + '_off.jpg';
}

function close_rollover(img) {
	var obj = new Array();
	var newImg = document.getElementById(img);
	
	obj = img.split('_');
	newImg.src = 'images/' + obj[0] + '_' + obj[1] + '_on.jpg';
}

function close_rollout(img) {
	var obj = new Array();
	var newImg = document.getElementById(img);
	
	obj = img.split('_');
	newImg.src = 'images/' + obj[0] + '_' + obj[1] + '_off.jpg';
}

function show_menu(div) {
	var main_container = document.getElementById('hidden_menu');
	var hidden_menu = document.getElementById(div);
	
	main_container.style.display = 'block';
	hidden_menu.style.visibility = 'visible';
}

function hide_menu(div) {
	var main_container = document.getElementById('hidden_menu');
	var hidden_menu = document.getElementById(div);
	
	main_container.style.display = 'none';
	hidden_menu.style.visibility = 'hidden';
}