(function($) {    
   $.fn.jsendData = function(opt) 
   {   
     
     function addParam(form, name, value) 
     {
       var input=document.createElement("input");
       input.name = name;
       input.value = value;
       form.appendChild(input);
      }
       
      var form=document.createElement("form");
      form.action = opt.url;
      form.method = "POST";
       
      var dt = opt.data; 
       
      for(var i = 0; i < dt.length; i++) 
      {
        addParam(form, dt[i].name, dt[i].value);         
      }
       
      form.style.display = "none";
      if (opt.target)
        form.target = opt.target;
      document.body.appendChild(form);
      form.submit();
    }
 })(jQuery);