// JavaScript Document
function checkform_req ( form )
{

  if (form.name.value == "") {
  alert( "Please enter your name." );
  form.name.focus();
  return false ;
  }
  else
  {
	if (form.phone.value == "") {
  alert( "Please enter your phone number." );
  form.phone.focus();
  return false ;
  }
  else
  {
	  
	if (form.email.value == "") {
    alert( "Please enter your email address." );
    form.email.focus();
    return false ;
    } 
    else
    {
      if (form.istek.value == "") {
      alert( "Please enter your request." );
      form.istek.focus();
      return false ;
      } 
      else
      {
        if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(form.email.value)){
        return true;
        }
        else
        {
        alert("Invalid E-mail Address! Please re-enter.")
        form.email.focus();
        return false;
        }
	  }
      }
    }
  }
  return true ;
}
//============================================================================//
function messageWindow(title, msg)
{
  var width="400", height="400";
  var left = (screen.width/2) - width/2;
  var top = (screen.height/2) - height/2;
  var styleStr = 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbar=no,resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+',top='+top+',screenX='+left+',screenY='+top;
  var msgWindow = window.open("","msgWindow", styleStr);
  var head = '<head><title>'+title+'</title></head>';
  var body = '<center>'+msg+'<br><p><form><input type="button" value="Close" onClick="self.close()"></form>';
  msgWindow.document.write(head + body);
}
//============================================================================//
function messageWindow2(title, msg)
{
  var width="400", height="400";
  var left = (screen.width/2) - width/2;
  var top = (screen.height/2) - height/2;
  var styleStr = 'toolbar=yes,location=yes,directories=no,status=yes,menubar=yes,scrollbar=yes,resizable=yes,copyhistory=yes,width='+width+',height='+height+',left='+left+',top='+top+',screenX='+left+',screenY='+top;
  var msgWindow = window.open("","msgWindow", styleStr);
  var head = '<head><title>'+title+'</title></head>';
  var body = '<center>'+msg+'<br><p><form><input type="button" value="Close" onClick="self.close()"></form>';
  msgWindow.document.write(head + body);
}