var toggle = {
	show : function() {
		for ( i=0; i < arguments.length; i++ ) {
			document.getElementById(arguments[i]).style.display = 'block';
		}
	},
	hide : function() {
		for ( i=0; i < arguments.length; i++ ) {
			document.getElementById(arguments[i]).style.display = 'none';
		}
	}
};
var light = {
	on : function() {
		for ( i=0; i < arguments.length; i++ ) {
			document.getElementById(arguments[i]).firstChild.style.background = 'url(/images/'+arguments[i]+'over.gif)';
		}
	},
	off : function() {
		for ( i=0; i < arguments.length; i++ ) {
			document.getElementById(arguments[i]).firstChild.style.background = 'url(/images/'+arguments[i]+'.gif)';
		}
	}
};
function hideAll() {
	toggle.hide('pro_tog','ori_tog','com_tog','com_ul_tog');
	light.off('pro','orig','comm');
}