function popUp(url, w, h)
{

    if(w == null)
    {
        w = 650;
    }
    
    if(h == null)
    {
        h = 650;
    }
    
  var hpos = (screen.width / 2) - (w / 2);
  var vpos = (screen.height / 2) - (h / 2);
    var theWindow = window.open(url, 'infobox', 'width=' + w + ',height=' + h + ',scrollbars=yes,toolbar=no,status=no,menubar=no,resizable=no,left=' + hpos + ',top=' + vpos + ',alwaysRaised=1');
  theWindow.focus();
    
}


function check(form){
  	if (document.forms[0].name.value == ""){
    		alert("Please complete all fields.");
    		return false;
  	}
   	if (document.forms[0].email.value == ""){
    		alert("Please complete all fields.");
    		return false;
  	}
   	if (document.forms[0].message.value == ""){
    		alert("Please complete all fields.");
    		return false;
  	}
  	return true;
}