function showtab(str_id){
	arr_id = str_id.split(", ");
	document.getElementById(arr_id[0]).style.display = "";
	document.getElementById(arr_id[0] + "_link").style.color = "#333333";
	document.getElementById(arr_id[0] + "_link").style.cursor = "text";
	for(i = 1; i < arr_id.length; ++i)
	{
		document.getElementById(arr_id[i]).style.display = "none";
		document.getElementById(arr_id[i] + "_link").style.color = "#0000FF";
		document.getElementById(arr_id[i] + "_link").style.cursor = "pointer";
	}
}

function toggle(str_id) {
	 var e = document.getElementById(str_id);
	 if(e.style.display == 'block')
			e.style.display = 'none';
	 else
			e.style.display = 'block';
}