var add_ub_url = HTTP_SERVER + "includes/add_ub_2_plan.php"; // The server-side script 

function addUebung(ueb_id,sp_tag,s2u_id, sp_id, action) {
	$.get(add_ub_url, { ueb_id: ""+ueb_id+"", sp_tag: ""+sp_tag+"", s2u_id: ""+s2u_id+"", sp_id: ""+sp_id+"", action: ""+action+"" },
	  function(data){
		$('#add_ueb_'+ueb_id+'_'+sp_tag).html(data);
	  });
}