var currenttab = "";

function viewtab(tagid)
{
	closetabs();
	currenttab = tagid.substr(1);
	document.getElementById(currenttab).style.display = "block";
	return false;
}

function closetabs()
{
	if(currenttab != "")
	{
		document.getElementById(currenttab).style.display = "none";
	}
}