function show_survey (surveyID, myHeight) {
	document.getElementById("survey_form_" + surveyID).style.display = "none"
	document.getElementById("display_survey_" + surveyID).style.display = ""
	ff_suffix = navigator.userAgent.search(/Firefox/i) != -1 ? "&ff=y" : ""
	document.getElementById("display_survey_" + surveyID).style.height = myHeight + "px"
	document.getElementById("display_survey_" + surveyID).src = "survey_show_results.php?id=" + surveyID + ff_suffix
}
function submitSurvey (surveyID, response) {
	xmlHttp = GetXmlHttpObject()
	if (xmlHttp == null) {
		return "Your browser does not support AJAX!"
	}
	var url = "survey_submit.php?survey=" + surveyID + "&response=" + response
	xmlHttp.open("GET" , url , false)
	try {
		xmlHttp.send()
	}
	catch (e) {
		xmlHttp.send(null)
	}
	if (xmlHttp.responseText.search("OK") != -1) {
		myHeight = xmlHttp.responseText.replace(/OK/, "")
		show_survey(surveyID, myHeight)
	}
	else
		alert("היתה בעיה בשליחת תשובתך")
}
function checkSurvey (surveyID) {
	myRadios = document.getElementById("survey_form_" + surveyID).getElementsByTagName("INPUT")
	for (var i = 0; i < myRadios.length; i++)
		if (myRadios[i].checked) {
			submitSurvey(surveyID, i)
			return
		}
		alert("אנא בחר תשובה")
}