function showBranch(branch,button) {
   var objBranch = document.getElementById(branch).style;
   var objButton = document.getElementById(button);

		document.getElementById('link1').className="back";
	  objButton.className="current";

	  document.getElementById('link-1').style.display="none";
	  objBranch.display="block";
}

function addtag() {
		if (document.getElementById('addTags').style.display=='block') {
		document.getElementById('addTags').style.display='none';
	} else {
		document.getElementById('addTags').style.display='block';
	}
}