var xmlHttp;





function getHTTPRequestObject()





{


try


  {


  // Firefox, Opera 8.0+, Safari


  xmlHttp=new XMLHttpRequest();


  }


catch (e)


  {


  // Internet Explorer


  try


    {


    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");


    }


  catch (e)


    {


    try


      {


      xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");


      }


    catch (e)


      {


      alert("Your browser does not support AJAX!");


      return false;


      }


    }


  }


  }





function performAction(){


	if(xmlHttp.readyState==4)


      {


			alert(xmlHttp.responseText);


      }


  }


function doTask(url,vars){


	if(checkSendMailForm()){


	getHTTPRequestObject();


	xmlHttp.onreadystatechange=performAction;


	xmlHttp.open("GET",url+vars,true);


	xmlHttp.send(null);


	}


  }





  function checkSendMailForm(){


	var miss_fields;


	if(document.forms['MailForm'].sender_name.value==''){


		alert('your name is missing');


		return false;


	}








	else if(document.forms['MailForm'].email.value==''){


		alert('your_friend@email is missing');


		return false;


	}


	return true;





}