var rool_url = "http://www.best-web-resources.eu/";

function showHideDiv(DivID,ImgID)
{
	var newDiv = document.getElementById(DivID);
	var newImg = document.getElementById(ImgID);
	if (newDiv.style.display == "none") {
		newDiv.style.display = "";
		newImg.src = rool_url + "images/collapse.jpg";
		newImg.alt = "collapse";
	}
	else {
		newDiv.style.display = "none";
		newImg.src = rool_url + "images/expand.jpg";
		newImg.alt = "expand";
	}
}