document.getElementsByClass = function( name ) {
	alert(name);
};

$ = function( input ) {
	if (typeof input == 'string') {
		if( input.match(/^(?:#).*/) != null ) {
			return document.getElementById(input.substring(1));
			
		} else if( input.match(/^\..*/) != null ) {
			return document.getElementsByClass(input.substring(1));
			
		} else {
			return document.getElementsByName(input);
		}
	}
	return input;
}


var Element = new Object();

Object.extend( Element, {
	isVisible: function( element ) {
		element = $(element);
		if( element == null ) return null;
	
		element.style.color = "green";
		
	}
	
});