var images_url = "site/themes/darken/css/images/";

function toggle( targetId )
{
	var state = 0;
	var blockname = "block" + targetId;
	var blockimage = "blockcollapse" + targetId;

	if ( document.getElementById ) {
		target = document.getElementById( blockname );
		if ( target.style.display == "none" ) {
			target.style.display = "";
			state = 1;
		}
		else {
			target.style.display = "none";
			state = 0;
		}

		document.getElementById( blockimage ).src = images_url + (state ? "/collapse.gif" : "/expand.gif");
		var tempImage = new Image();
		tempImage.src = "#action=tpmod;upshrink=" + targetId + ";state=" + state + ";" + (new Date().getTime());

	}
}