function doShowHide(str) {
	var jumpcontent = document.getElementById("jumpcontent" + str);
	var jumptext = document.getElementById("jumptext" + str);
	
	if (jumptext.innerText == "Show index") {
		jumpcontent.style.display = "block";
		jumptext.innerText = "Hide index";
	}
		else
	{
		jumpcontent.style.display = "none";
		jumptext.innerText = "Show index";
	}
}