// JavaScript Document

var xmlhttp

function GetXmlHttpObject(){
	if (window.XMLHttpRequest){
	  // code for IE7+, Firefox, Chrome, Opera, Safari
	  return new XMLHttpRequest();
	}
	
	if (window.ActiveXObject){
	  // code for IE6, IE5
	  return new ActiveXObject("Microsoft.XMLHTTP");
	}
	 
	return null;
}


function clearTextBox(boxId){
	var thisbox;
	if(document.getElementById(boxId)){
		thisbox = document.getElementById(boxId);
		if(thisbox.value == thisbox.title){
			thisbox.value = '';			
		}
	}
}

function checkTextValue(boxId){
	var thisbox;
	if(document.getElementById(boxId)){
		thisbox = document.getElementById(boxId);			
		if(thisbox.value == ''){
			thisbox.value = thisbox.title;
		}			
	}	
}
	
	
function checkNewsSignUp(){
	if(document.getElementById('ea').value=="Email Address"){
		alert('Please enter a valid email address.')
		return false;
	}
	if(!echeck(document.getElementById('ea').value)){
		return false;	
	}
	document.forms['frmCC'].submit();
}
	
function updateSurveyResults(surveyId){
	var resCount = document.getElementsByName('surveyAnswers').length;	
	var selNum;
	for(i=0;i<resCount;i++){
		if(document.getElementsByName('surveyAnswers').item(i).checked){
			selNum=document.getElementsByName('surveyAnswers').item(i).value;	
		}
	}
		
	xmlhttp=GetXmlHttpObject();
	if (xmlhttp==null){
	  alert ("Your browser does not support AJAX!");
	  return;
	}
	
	xmlhttp.onreadystatechange=function(){
		if (xmlhttp.readyState==4){
			response = xmlhttp.responseText;	
			if(response==1){
				document.getElementById('surveyAnswers').innerHTML = '<br/>Thank you for participating in our survey!<br/><a href="javascript:void(0);" onclick="showSurvey('+surveyId+')">Click Here</a> to view the results.';
			}
		}	
	};
	
	xmlhttp.open ("GET", "ajax/updateSurveyResults.php?id=" + surveyId + "&a=" + selNum, true);
	xmlhttp.send (null);
			
			
}

function closeSurvey(){
	document.getElementById('blackBackground').style.visibility = 'hidden';	
	document.getElementById('surveyResultsContainer').style.visibility = 'hidden';	
	document.getElementById('menuContainerContainer').style.visibility = 'visible';
	iFrame = document.getElementById('surveyFrame');
	iFrame.src = "";
	document.getElementById('surveyFrame').contentDocument.location.reload(true);
}

function showSurvey(surveyId){
	document.getElementById('blackBackground').style.visibility = 'visible';	
	document.getElementById('surveyResultsContainer').style.visibility = 'visible';	
	document.getElementById('menuContainerContainer').style.visibility = 'hidden';
	iFrame = document.getElementById('surveyFrame');
	iFrame.src = "surveyResults.php?id="+surveyId.toString();
	document.getElementById('surveyFrame').contentDocument.location.reload(true);
	
}