var MSG_NEED_NUMBER     = 1
var MSG_NEED_VALUE      = 2
var MSG_NEED_YEAR		= 4
var MSG_NEED_2_DECIMAL  = 5
var MSG_MAX_100         = 6
var MSG_SUM_100         = 7
var MSG_NEED_DATE       = 8
var MSG_WARN_NO_VALUE   = 9

var ie=document.all
var dom=document.getElementById
var ns4=document.layers

var bBlankItems = false
var nFirstBlankItem

var bRadioInit = false
var aryRadioButton = new Array();
var nControlCount
var bReloading=false;
					
function BodyOnLoad() {
	bRadioInit=true;
	nControlCount=0;
	//clear the new array
	//each position in the array corresponds to a question
	for(i=0; i<50; ++i) {
		aryRadioButton[i] = null;
	}
}
				
function RadioUnClick(rdoObject,iQuestionNumber) {
	//If the value of the radiobutton is the same value, then the user clicked a radio button
	//that is already selected.  Therefore we need to unselected it.

	if(bRadioInit==false) BodyOnLoad();
	
//	alert(iQuestionNumber + rdoObject.name + " " + rdoObject.type)
	
	if(iQuestionNumber > nControlCount) nControlCount=iQuestionNumber;
	
	if ((rdoObject.value)==(aryRadioButton[iQuestionNumber])) {
		rdoObject.checked = false;
		aryRadioButton[iQuestionNumber] = null;
	} else {
		//keep track of the new value
		aryRadioButton[iQuestionNumber] = rdoObject.value;
	}
}

function RadioOnFocus(rdoObject,iQuestionNumber) {
	//If the value of the radiobutton is the same value, then the user clicked a radio button
	//that is already selected.  Therefore we need to unselected it.

	if(bRadioInit==false) BodyOnLoad();
	
	if(iQuestionNumber > nControlCount) nControlCount=iQuestionNumber;

	if(rdoObject.checked == true)
		aryRadioButton[iQuestionNumber] = rdoObject.value;
}


if(top.sidebar != null)
{
	if(top.sidebar.SelectCurrentPage != null)
	{
		top.sidebar.SelectCurrentPage()
	}
}

function TrackCount(fieldObj,countFieldName,maxChars)
{
  var countField = eval("fieldObj.form."+countFieldName);
  var diff = maxChars - fieldObj.value.length;

  // Need to check & enforce limit here also in case user pastes data
  if (diff < 0)
  {
    fieldObj.value = fieldObj.value.substring(0,maxChars);
    diff = maxChars - fieldObj.value.length;
  }
  //countField.value = diff;
}

function LimitText(fieldObj,maxChars)
{
  var result = true;
  if (fieldObj.value.length >= maxChars)
    result = false;
  
  if (window.event)
    window.event.returnValue = result;
  return result;
}

function JumpToPage(nPage)
{
	if(top.survey.ValidationCheck != null)
	{
		if(ValidationCheck())
		{
			document.UserForm.action="/surveyb/survey.asp?Action=" + nPage
			document.UserForm.submit()
		}
	}
	else
	{
		document.UserForm.action="/surveyb/survey.asp?&Action=" + nPage
		document.UserForm.submit()
	}
}

function JumpToPhysPage(nPage)
{
	if(top.survey.ValidationCheck != null)
	{
		if(ValidationCheck())
		{
			document.UserForm.action="/surveyb/survey.asp?IsPhysPage=1&Action=" + nPage
			document.UserForm.submit()
		}
	}
	else
	{
		document.UserForm.action="/surveyb/survey.asp?IsPhysPage=1&Action=" + nPage
		document.UserForm.submit()
	}
}

function LogoffSurvey()
{
	if(ValidationCheck())
	{
		document.UserForm.action="/survey.asp?Action=Exit"
		document.UserForm.submit()
	}
}


function ReloadPage(ctl)
{
	if(ctl != 0)
	{
		if(bReloading==false)
		{
			bReloading=true;
			document.UserForm.action=document.UserForm.action + "&Action=reload&ScrollPos=" + GetScrollPos() 
			document.UserForm.submit()
		}
	}
}


function GetScrollPos()
{

	var y = window.scrollY
	
	if(y >=0)
		return y;
	else
	{
		if(ie!=null)
		{
			y=document.body.scrollTop;
			if(y>0) 
				return y;
		}
	}
	return 0;		
}

function  Required(item)
{
	var bItemChecked = false;

	if(item.value != null)
	{
   	    SetBkColor(item,"white")
		if(item.length == null)  // a data-entry type field
		{
			if (item.value == "")
			{
				item.focus()
   			    SetBkColor(item,"red")
				alert(GetMessage(MSG_NEED_VALUE))
				item.focus()
				return false;
			}
		}
		else	// A combo-box.  a value of Zero indicates no value
		{
			if (item.value == "0")
			{
				item.focus()
  			    SetBkColor(item,"red")
				alert(GetMessage(MSG_NEED_VALUE))
				item.focus()
				return false;
			}
		}

	}
	else  // Multiple radio buttons
	{
		for (var i=0;i<item.length;i++)
		{
    	  SetBkColor(item[i],"white")
		  if (item[i].checked)
		  {
		    bItemChecked = true;
		  }
		}
		if(bItemChecked == false)    
		{
			for (var i=0;i<item.length;i++)
			{
  			    SetBkColor(item[i],"red")
			}
			alert(GetMessage(MSG_NEED_VALUE))
			item[0].focus()
			item[0].focus()
			return false;
		}
	}
	return true;
}

function WarnLastBlank(item)
{
	WarnIfBlank(item);
	

	if(bBlankItems==true) 
	{
		nFirstBlankItem.focus()
		bBlankItems=false;
		
		var agree = confirm(GetMessage(MSG_WARN_NO_VALUE))
			
		if (agree)
			return true ;
		else
			return false ;
	}
	else
		return true;
}

function WarnIfBlank(item)
{
	var bItemChecked = false;

	if(item.value != null)
	{
   	    SetBkColor(item,"white")
		if(item.length == null)  // a data-entry type field
		{
			if (item.value == "")
			{
				item.focus()
   			    SetBkColor(item,"red")
				item.focus()
				if(bBlankItems!=true) nFirstBlankItem=item;
				bBlankItems=true;
			}
		}
		else	// A combo-box.  a value of Zero indicates no value
		{
			if (item.value == "0")
			{
				item.focus()
  			    SetBkColor(item,"red")
				item.focus()
				if(bBlankItems!=true) nFirstBlankItem=item;
				bBlankItems=true;
			}
		}

	}
	else  // Multiple radio buttons
	{
		for (var i=0;i<item.length;i++)
		{
		  SetBkColor(item[i],"white")
		  if (item[i].checked)
		  {
		    bItemChecked = true;
		  }
		}
		if(bItemChecked == false)    
		{
			for (var i=0;i<item.length;i++)
			{
//  			    SetBkColor(item[i],"red")
  //			    item[i].color="red";
  			    item[i].bgColor="green";
			}
			item[0].focus()
			item[0].focus()
			if(bBlankItems!=true) nFirstBlankItem=item[0];
			bBlankItems=true;
		}
	}
	return true;
}

function EnsureNumeric(item)
{	
	return ShowErr(item,!isNumeric(item.value),GetMessage(MSG_NEED_NUMBER))
}


function EnsureYear(item)
{			
	return ShowErr(item, !( /^\d{4}$/.test(item.value)),GetMessage(MSG_NEED_YEAR))
}

function EnsureDate(item)
{	
	return ShowErr(item,FormatDate(item),GetMessage(MSG_NEED_DATE))
}

function RequireDate(item)
{	if(Required(item))
	{
		return ShowErr(item,FormatDate(item),GetMessage(MSG_NEED_DATE))
	}
}


function FormatDate(item)
{
	
	var x
	
	
	if(item==0)
	{
	}
	else
	{
	
		if(item.value.length==0)
			return false;
			
		x=Date.parse(item.value)
		if(isNaN(x))
		{
			ShowErr(item,true,"")
			return true;
		}
		else
		{
			var y=new Date(x)
			// Dates entered in 2 digits still show 19??
			if(y.getFullYear() < 1930)
			{
				y.setFullYear(y.getFullYear()+100)
			}
			
			item.value= (d.getMonth()+1) +"/" + (d.getDate()+1) + "/" + d.getYear();
//			item.value=y.toDateString()
			ShowErr(item,false,"")
			return false;
		}
	}
}


function EnsureMoney(item)
{			
	return ShowErr(item, !( /^\d{0,8}(\.\d{0,2})?$/.test(item.value)),GetMessage(MSG_NEED_2_DECIMAL))
}
function EnsurePercent(item)
{			
	if( !ShowErr(item, !( /^\d{0,5}(\.\d{0,2})?$/.test(item.value)),GetMessage(MSG_NEED_2_DECIMAL))) return false;
	return ShowErr(item,(GetFloat(item.value) > 100.0),GetMessage(MSG_MAX_100))
}


function GetInt(item)
{
	if (item=="")
		return 0;
	else
		return parseInt(item);
}

function GetFloat(item)
{
	if (item=="")
		return parseFloat("0.0");
	else
		return parseFloat(item);
}

function  GetRadioButton(item)
{
	var bItemChecked = false;
    for (var i=0;i<item.length;i++)
    {
      if (item[i].checked)
      {
		return item[i].value
      }
    }
	return -1;
}

function  DisableRadioButton(item,status)
{
    for (var i=0;i<item.length;i++)
    {
 		item[i].disabled=status
    }
}

function ShowErr(item,test,msg)
{			
if ( test)
 {
   SetBkColor(item,"red")
   if(msg!="") {
	 alert(msg)
	 item.focus();
   }
   return false
 }
 else
 {
   SetBkColor(item,"white")
   return true
 }		
}

function SetBkColor(item,color)
{
	if (dom== null && ie==null)
		return;
	item.style.backgroundColor=color;
}

function SetColor(item,color)
{
	if (dom== null && ie==null)
		return;
	item.style.color=color
}

	
//Function for determining if form value is a number.
//Note:  The JScript isNaN method is a more elegant way to determine whether
//a value is not a number. However, some older browsers do not support this method.
function isNumeric(str)
{
  for (var i=0; i < str.length; i++)
		{
    var ch = str.substring(i, i+1)
    if( ch < "0" || ch > "9" || str.length == null)
				{
      return false
    }
  }
  return true
}	

//-----------------------------------------------------------------------------
// Custom Script Helper Functions
//-----------------------------------------------------------------------------

function GetQInt(strItemName)
{
	var strValue = GetQValue(strItemName);
	
	if (strValue=="")
		return 0;
	else
		return parseInt(strValue);
}

function SetQValue(strItemName,strValue)
{
	var item = GetQItem(strItemName)
	if(item)
		item.value = strValue;
}

function GetQValue(strItemName)
{
	var item = GetQItem(strItemName)
	
	if (item)
		return item.value;
	else
		return "";
}


function  GetQRadio(strItemName)
{
	var item = GetQItem(strItemName)

    for (var i=0;i<item.length;i++)
    {
      if (item[i].checked)
      {
		return parseInt(item[i].value)
      }
    }
	return 0;
}

function  OutputOnly(strItemName)
{
	var item = GetQItem(strItemName)
	if(item)
	{
		item.disabled=true;
		SetBkColor(item,"#404040");
		SetColor(item,"#00ff00")
	}
}

function SetQErr(strItemName,test,msg)
{			
	var item = GetQItem(strItemName)
	
	if ( test)
	{
		SetBkColor(item,"red")
		if(msg!="") {
			alert(msg)
			item.focus();
		}
		return false
	}
	else
	{
		SetBkColor(item,"white")
		return true
	}		
}

function SetQRadioErr(strItemName,test,msg)
{			
	var item = GetQItem(strItemName)
	
	if ( test)
	{
		for (var i=0;i<item.length;i++)
		{
  		    SetBkColor(item[i],"red")
		}
		if(msg!="") {
			alert(msg)
			item[0].focus();
		}
		return false
	}
	else
	{
		for (var i=0;i<item.length;i++)
		{
  		    SetBkColor(item[i],"white")
		}
		return true
	}		
}


// Browser compatibility layer.  Any function that is dependent on 
// browser version should go here

function GetQItem(strItemName)
{
	return document.UserForm[strItemName];
}