function minimizeOnClick(img) {
	var portlet = img.parentElement.parentElement.parentElement.parentElement;
	var minimized = portlet.children.item(1).style.display == "none";
	if(minimized) {	
		img.src = img.src.replace("maximize", "minimize");
		portlet.children.item(1).style.display = "block";
		portlet.parentElement.parentElement.parentElement.style.height = "";
	}
	else {
		img.src = img.src.replace("minimize", "maximize");
		portlet.children.item(1).style.display = "none";
		portlet.parentElement.parentElement.parentElement.style.height = "18px";
	}
}