var ie4 = !!document.all
var w3c_dom = !!self.HTMLElement
var nc4 = !!(!w3c_dom && window.captureEvents)


//gets url values
//i.e.: http://localhost/pricewatch_alternative/default.aspx?lyr=7
//lyr=14&price_type=avg
 var urlquery = location.href.split("?")
 //we remain with 'lyr=7'
  if (urlquery[1]) {
  var urlterms = urlquery[1].split("&")
   var preregid = urlterms[0].split("=")
  if (preregid[1]) {
  var finalparam = preregid[1]
 
  }
 
  
  }


if (w3c_dom && !ie4) {
  document.writeln('<script language="JavaScript" src="../pricewatch_files/dom.js"></sc'+'ript>')
  ie4 = true
}

var dhtml = (ie4 || nc4)

// End

var active_page = 0
var active_page2 = 0

var visible, hidden
if (ie4) {
  visible = "inherit"
  hidden = "hidden"
}
else {
  visible = "show"
  hidden = "hide"
}

var pages_loaded = false
var layerTimerID = null
var pages = new Array()

function layerOver(num) {
  if (!dhtml || !pages_loaded)
    return
  layerTimerID = setTimeout("layerChange(" + num + ")", delay)
}

function showload(){
  if (!dhtml || !pages_loaded)
    return
  layerTimerID = setTimeout("layerChange(" + '41' + ")", delay)
}

function layerOut() {
  if (layerTimerID)
    clearTimeout(layerTimerID)
}

function layerChange(num) {
  layerTimerID = null
 //write values for each region 

 var num2 = '0'
  if (num == '1') { num2 = "21"}
  if (num == '2') { num2 = "22"}
  if (num == '3') { num2 = "23"}
  if (num == '4') { num2 = "24"}
  if (num == '5') { num2 = "25"}
  if (num == '6') { num2 = "26"}
  if (num == '7') { num2 = "27"}
  if (num == '8') { num2 = "28"}
  if (num == '9') { num2 = "29"}
  if (num == '10') { num2 = "30"}
  if (num == '11') { num2 = "31"}
  if (num == '12') { num2 = "32"}
  if (num == '13') { num2 = "33"}
  if (num == '14') { num2 = "34"}
  if (num == '15') { num2 = "35"}
  if (num == '16') { num2 = "36"}
  if (num == '17') { num2 = "37"}
  if (num == '18') { num2 = "38"}
  if (num == '19') { num2 = "39"}
  if (num == '20') { num2 = "40"}
  
 
  var p_old = pages[active_page]
  var r_old = pages[active_page2]
  
  p_old.visibility = hidden
  r_old.visibility = hidden
  if ((w3c_dom) && (active_page != num))
    p_old.display = "none"
   // r_old.display = "none"

  active_page = num
  active_page2 = num2
  var p_new = pages[active_page]
  //region
  var r_new = pages[active_page2]
  //table mouse over
  p_new.visibility = visible
  //region highlight
  r_new.visibility = visible
  
  if (w3c_dom)
  {
    p_new.display = "inline"
    r_new.display = "inline"
  }
}

function initLayers() {
  if (!dhtml)
    return
if (screen.width>=1024){  

  document.writeln('<DIV id=' + ("layer" + page_max) + ' class=page><br><br><br><br><br><table align=left><tr><td><h5>Please move your mouse over the New Zealand map regions to look up fuel prices.</h5></td></tr></table></DIV>')
 } else {
 
 document.writeln('<DIV id=' + ("layer" + page_max) + ' class=page><br><br><br><br><br><table align=left><tr><td><h5>Please move your mouse over the New Zealand map regions to look up fuel prices.</H5></td></tr></table></DIV>')
 }
   
  for (var i = 0; i <= page_max; i++)
    pages[i] = (ie4) ? document.all["layer" + i] : document.layers["layer" + i]

  if (nc4)
    page_height = 0

  if (!page_height) {
    var p_height
    if (ie4)
      p_height = pages[0].offsetHeight
    for (var i = 0; i <= page_max; i++) {
      var p = pages[i]
      p_height = (ie4) ? p.offsetHeight : p.clip.height
      if (p_height > page_height)
        page_height = p_height
    }
  }
  else {
    for (var i = 0; i <= page_max; i++) {
      pages[i].style.pixelHeight = page_height
      pages[i].style.overflow = "auto"
    }
  }
  if (ie4) {
    for (var i = 0; i <= page_max; i++) {
      var p = pages[i]
      if (w3c_dom)
        p.style.display = "none"
      pages[i] = p.style
    }
  }

 if (finalparam) { page_max = finalparam}
  layerChange(page_max)
  pages_loaded = true
}