//addLoadListener(initDialog);

function initDialog()
{
	var extlinks = document.getElementsByTagName("a");
  var msg = '';
  var pattern = /^https|^http:\/\/local.google.com\/|^BASE_URL|^mailto|^[^http]|^http:\/\/mail.gaslightmedia.net\/mailman\/mmstdol.cgi/;
  for( var b = 0; b < extlinks.length; b++ )
  {	
	  if( extlinks[b].getAttribute("class") == 'extlink'
	  || extlinks[b].getAttribute("className") == 'extlink' )
	  {
		 if( !pattern.test( extlinks[b].href ) )
		 {
			msg += extlinks[b] + "\n";
			extlinks[b].onclick = createDialog;
		 }
	 }
  }
  //alert(msg);
  return true;
}
function getElementsByAttribute(attribute, attributeValue)
{
  var elementArray = new Array();
  var matchedArray = new Array();

  if (document.all)
  {
    elementArray = document.all;
  }
  else
  {
    elementArray = document.getElementsByTagName("*");
  }

  for (var i = 0; i < elementArray.length; i++)
  {
    if (attribute == "class")
    {
      var pattern = new RegExp("(^| )" + attributeValue + "( |$)");

      if (pattern.test(elementArray[i].className))
      {
        matchedArray[matchedArray.length] = elementArray[i];
      }
    }
    else if (attribute == "for")
    {
      if (elementArray[i].getAttribute("htmlFor") || elementArray[i].getAttribute("for"))
      {
        if (elementArray[i].htmlFor == attributeValue)
        {
          matchedArray[matchedArray.length] = elementArray[i];
        }
      }
    }
    else if (elementArray[i].getAttribute(attribute) == attributeValue)
    {
      matchedArray[matchedArray.length] = elementArray[i];
    }
  }

  return matchedArray;
}
function createDialog( linkId )
{
  var body = document.getElementsByTagName("body")[0];
  var pageDimensions = getPageDimensions();
  var viewportSize = getViewportSize();

  if (viewportSize[1] > pageDimensions[1])
  {
    pageDimensions[1] = viewportSize[1];
  }

  var dropSheet = document.createElement("div");

  dropSheet.setAttribute("id", "dropSheet");
  dropSheet.style.position = "absolute";
  dropSheet.style.left = "0";
  dropSheet.style.top = "0";
  dropSheet.style.width = pageDimensions[0] + "px";
  dropSheet.style.height = pageDimensions[1] + "px";
  body.appendChild(dropSheet);

  try
  {
    var dialog = document.createElement("div");
    dialog.className = "customDialog";
    dialog.style.visibility = "hidden";
    dialog.style.position = "absolute";

    var dialogTitle = document.createElement("h1");
    dialogTitle.appendChild(document.createTextNode("External URL"));
    dialog.appendChild(dialogTitle);

    var dialogMessage = document.createElement("p");
    dialogMessage.appendChild(document.createTextNode("You have requested to open a new browser window, but the Official Web Site of the Mackinaw Area Visitors "));
	dialogMessage.appendChild(document.createTextNode("Bureau as operated under Michigan Public Act 59, will remain in the background."));
    var dialogMessage2 = document.createElement("p");
	dialogMessage2.appendChild(document.createTextNode("The Mackinaw Area Visitors Bureau is not responsible for the content or "));
	dialogMessage2.appendChild(document.createTextNode("accuracy of this Web site link. Please click the button below to continue "));
	dialogMessage2.appendChild(document.createTextNode("the redirect to the selected business. "));

   // var dialogMessage3 = document.createElement("p");
   // var dialogLink = document.createElement("a");
   // dialogLink.setAttribute("href", linkId.getAttribute( "href" ) );
   // dialogLink.setAttribute("target", "_blank" );
   // dialogLink.setAttribute("class", "contButton" );
//	dialogLink.appendChild( document.createTextNode('Continue'));
//	attachEventListener(dialogLink, "click", dialogClick, false);
  //  dialogMessage3.appendChild(dialogLink);

	var dialogButton2 = document.createElement("input");
    dialogButton2.setAttribute("type", "button");
    dialogButton2.setAttribute("href", linkId.getAttribute( "href" ) );
    dialogButton2.setAttribute("target", "_blank" );
    dialogButton2.setAttribute("value", "Continue");
    attachEventListener(dialogButton2, "click", dialogClick3, false);

	var dialogButton3 = document.createElement("input");
    dialogButton3.setAttribute("type", "button");
    dialogButton3.setAttribute("value", "Cancel");
    attachEventListener(dialogButton3, "click", dialogClick2, false);

    dialog.appendChild(dialogMessage);
    dialog.appendChild(dialogMessage2);
   // dialog.appendChild(dialogMessage3);
    dialog.appendChild(dialogButton2);
    dialog.appendChild(dialogButton3);
    body.appendChild(dialog);

    var scrollingPosition = getScrollingPosition();

    dialog.style.left = scrollingPosition[0] + parseInt(viewportSize[0] / 2) - parseInt(dialog.offsetWidth / 2) + "px";
    dialog.style.top = scrollingPosition[1] + parseInt(viewportSize[1] / 2) - parseInt(dialog.offsetHeight / 2) + "px";
    dialog.style.visibility = "visible";

    dialogButton2.focus();
  }
  catch(error)
  {
alert(error);
    dropSheet.parentNode.removeChild(dropSheet);

    return true;
  }

    return false;
}

function dialogClick3(event)
{
  if (typeof event == "undefined")
  {
    event = window.event;
  }

  var target = getEventTarget(event);

  while (target.nodeName.toLowerCase() != "input")
  {
    target = target.parentNode;
  }
    var dialog = target;

    while (dialog.className != "customDialog")
    {
      dialog = dialog.parentNode;
    }
	var href2 = target.getAttribute("href");
	var external = window.open( href2 );

    closeDialog(dialog);

  return true;
}
function dialogClick2(event)
{
  if (typeof event == "undefined")
  {
    event = window.event;
  }

  var target = getEventTarget(event);

  while (target.nodeName.toLowerCase() != "input")
  {
    target = target.parentNode;
  }

    var dialog = target;

    while (dialog.className != "customDialog")
    {
      dialog = dialog.parentNode;
    }

    closeDialog(dialog);

  return true;
}
function dialogClick(event)
{
  if (typeof event == "undefined")
  {
    event = window.event;
  }

  var target = getEventTarget(event);

  while (target.nodeName.toLowerCase() != "a")
  {
    target = target.parentNode;
  }

  var value = target.getAttribute("href");

    var dialog = target;

    while (dialog.className != "customDialog")
    {
      dialog = dialog.parentNode;
    }

    closeDialog(dialog);

  return true;
}

function closeDialog(dialog)
{
  var dropSheet = document.getElementById("dropSheet");

  dropSheet.parentNode.removeChild(dropSheet);
  dialog.parentNode.removeChild(dialog);

  return true;
}

function addLoadListener(fn)
{
  if (typeof window.addEventListener != 'undefined')
  {
    window.addEventListener('load', fn, false);
  }
  else if (typeof document.addEventListener != 'undefined')
  {
    document.addEventListener('load', fn, false);
  }
  else if (typeof window.attachEvent != 'undefined')
  {
    window.attachEvent('onload', fn);
  }
  else
  {
    var oldfn = window.onload;
    if (typeof window.onload != 'function')
    {
      window.onload = fn;
    }
    else
    {
      window.onload = function()
      {
        oldfn();
        fn();
      };
    }
  }
}

function attachEventListener(target, eventType, functionRef, capture)
{
  if (typeof target.addEventListener != "undefined")
  {
    target.addEventListener(eventType, functionRef, capture);
  }
  else if (typeof target.attachEvent != "undefined")
  {
    target.attachEvent("on" + eventType, functionRef);
  }
  else
  {
    eventType = "on" + eventType;

    if (typeof target[eventType] == "function")
    {
      var oldListener = target[eventType];

      target[eventType] = function()
      {
        oldListener();

        return functionRef();
      }
    }
    else
    {
      target[eventType] = functionRef;
    }
  }

  return true;
}

function getEventTarget(event)
{
  var targetElement = null;

  if (typeof event.target != "undefined")
  {
    targetElement = event.target;
  }
  else
  {
    targetElement = event.srcElement;
  }

  while (targetElement.nodeType == 3 && targetElement.parentNode != null)
  {
    targetElement = targetElement.parentNode;
  }

  return targetElement;
}

function getScrollingPosition()
{
  //array for X and Y scroll position
  var position = [0, 0];

  //if the window.pageYOffset property is supported
  if (typeof window.pageYOffset != 'undefined')
  {
    //store position values
    position = [
        window.pageXOffset,
        window.pageYOffset
    ];
  }

  //if the documentElement.scrollTop property is supported
  //and the value is greater than zero
  if (typeof document.documentElement.scrollTop != 'undefined'
      && document.documentElement.scrollTop > 0)
  {
    //store position values
    position = [
        document.documentElement.scrollLeft,
        document.documentElement.scrollTop
    ];
  }

  //if the body.scrollTop property is supported
  else if(typeof document.body.scrollTop != 'undefined')
  {
    //store position values
    position = [
        document.body.scrollLeft,
        document.body.scrollTop
    ];
  }

  //return the array
  return position;
}

function getViewportSize()
{
  var size = [0,0];

  if (typeof window.innerWidth != 'undefined')
  {
    size = [
        window.innerWidth,
        window.innerHeight
    ];
  }
  else if (typeof document.documentElement != 'undefined'
      && typeof document.documentElement.clientWidth != 'undefined'
      && document.documentElement.clientWidth != 0)
  {
    size = [
        document.documentElement.clientWidth,
        document.documentElement.clientHeight
    ];
  }
  else
  {
    size = [
        document.getElementsByTagName('body')[0].clientWidth,
        document.getElementsByTagName('body')[0].clientHeight
    ];
  }

  return size;
}

function getPageDimensions()
{
  var body = document.getElementsByTagName("body")[0];
  var bodyOffsetWidth = 0;
  var bodyOffsetHeight = 0;
  var bodyScrollWidth = 0;
  var bodyScrollHeight = 0;
  var pageDimensions = [0, 0];

  if (typeof document.documentElement != "undefined" &&
      typeof document.documentElement.scrollWidth != "undefined")
  {
    pageDimensions[0] = document.documentElement.scrollWidth;
    pageDimensions[1] = document.documentElement.scrollHeight;
  }

  bodyOffsetWidth = body.offsetWidth;
  bodyOffsetHeight = body.offsetHeight;
  bodyScrollWidth = body.scrollWidth;
  bodyScrollHeight = body.scrollHeight;

  if (bodyOffsetWidth > pageDimensions[0])
  {
    pageDimensions[0] = bodyOffsetWidth;
  }

  if (bodyOffsetHeight > pageDimensions[1])
  {
    pageDimensions[1] = bodyOffsetHeight;
  }

  if (bodyScrollWidth > pageDimensions[0])
  {
    pageDimensions[0] = bodyScrollWidth;
  }

  if (bodyScrollHeight > pageDimensions[1])
  {
    pageDimensions[1] = bodyScrollHeight;
  }

  return pageDimensions;
}