disable iperf button

iperf/iperf-json.js

@@ -49,6 +49,8 @@ function iperf(direction, host, nobs, interval, parallel, port){
     var title='Bandwidth report ' + direction + ' ' + host + ' at '  + new Date().toLocaleTimeString();
 //    var UWAP = require("/_/js/require.js");
 
+    document.getElementById("test-button").disabled = true;
+
     var request = $.ajax( { url: url, dataType: 'json', timeout: (nobs+2)*1000, // in ms need +2 sec for iperf
 			    headers: { "X-TOKEN": "virre-virre-vapp" } } );
     request.fail( function( jqXHR, status, error){
@@ -56,6 +58,7 @@ function iperf(direction, host, nobs, interval, parallel, port){
 	$('#traces').tabs( "enable", 1);
  	$('#traces').tabs({ active:1});
 	$("#busy").hide();
+	document.getElementById("test-button").disabled = false;
     });
  
     request.done( function( iperfr){
@@ -63,6 +66,7 @@ function iperf(direction, host, nobs, interval, parallel, port){
 	$("#busy").hide();
 	$('#traces').tabs( "enable", 0);
 	$('#traces').tabs( "enable", 1);
+	document.getElementById("test-button").disabled = false;
 
 	if (iperfr.error){
 	    $("#tracetablecontainer").prepend( '<h3>'+title + ': ' + iperfr["error"] +'</h3>'); // error message
@@ -238,7 +242,7 @@ function make_select( elm, url){
     var html='<form name="iperf_form" id="iperf_form"';
     html+= 'action="javascript:iperf( $(\'#direction\').val(), $(\'#tr_host\').val(), $(\'#tr_times\').val(), $(\'#tr_interval\').val(), $(\'#tr_parallel\').val(),  $(\'#tr_port\').val() )">';
     html+='<table><tr><td>';
-    html+='<input  class="btn btn-primary btn-lg" type="submit" value="Test" class=button/> ';
+    html+='<input id="test-button" class="btn btn-primary btn-lg" type="submit" value="Test" class=button/> ';
     html+='<select id=direction style=width=6em><option value="to">to</option><option value="from">from</option></select>';
    html+='<td><input id=tr_host value="" placeholder="my host" title="Automatic completion(try \'mp\')"></input>';
     html+='<select id=tr_host_menu title="Choose host">host menu</select>';