function comments(){
	object=document.getElementById("comments");
	if(object.style.display == 'none'){
		object.style.display = 'block';
	}else{
		object.style.display = 'none';
	}
}

if (document.images){
	facebookButton = new Image;
	facebookButton.src = "images/facebook.png";
	facebookButton_over = new Image;
	facebookButton_over.src = "images/facebook_over.png";
}

function chgImg (imgField, newImg){
	if (document.images){
		document[imgField].src=eval(newImg+".src");
	}
}