window.addEvent('domready', function(){ 
     $('callForm').addEvent('submit', function(e) {
          new Event(e).stop();
          startCall(e);
     });
});


function startCall(e) {
  // Update user interface
 $('response').innerHTML = 'Calling....';

//var url="/c2c/ajaxServer.php?txtnumber="+document.getElementById('txtnumber').getValue();
var url="/c2c/ajaxServer.php?txtnumber="+document.getElementById('txtnumber').value;

var a=new Ajax(url,{
method:"get",
update:$("response")
}).request();

}