var preloaded = new Array();
function preload_images() {
	//alert(arguments.length);
    for (var i = 0; i < arguments.length; i++){
        preloaded[i] = document.createElement('img');
        preloaded[i].setAttribute('src',arguments[i]);
    };
};



menu = Array();
menu[27]="menu_item_27";
menu[28]="menu_item_28";
menu[29]="menu_item_29";
menu[30]="menu_item_30";
function showmenu(elemNumber)
{
	for ( var i in menu )
	{
		 hidemenu(i);
	}
	document.getElementById(menu[elemNumber]).style.display='block';
}
function hidemenu(elemID)
{
	document.getElementById(menu[elemID]).style.display='none';
}