function showmyBlock(ID){
	var tabs_map = {"t1":"comments", "t2": "who_voted", "t3":"sendbox", "t4":"addToGroup"};
	$.each(tabs_map, function(tab_name, content_name, b3) {
		if (tab_name == ID) {
			$(document.getElementById(tab_name)).attr('class', "inner4");
			document.getElementById(content_name).style.display = "block";
		} else {
			$(document.getElementById(tab_name)).attr('class', "inner3");
			document.getElementById(content_name).style.display = "none";
		}
	});
}