var arraySize;
var gblWindowHandle = null;

function pageNav(strTarget) 
{	
	var bitsSize = 0;
	var pageSize = 0;
	var paramSize = 0;
	
	// Perform a Javascript Split if available
	if (navigator.appVersion.substring(0, 3) != '2.0') 
      {
		var windowURL = window.self.document.URL;
	} 
      else 
      {
		var windowURL = window.location;
	}

	// Get the Current URL
	var currentPage = new String(windowURL);
	// Set the Parameter Flag
	var bParam = false;
	
	// Split off the page parameters
	var pageBit = doSplit(currentPage, '?');
	if (navigator.appVersion.substring(0, 3) != '2.0') 
      {
		pageSize = pageBit.length;
	} 
      else 
      {
		pageSize = arraySize;
	}
	
	// Split to Just the local page name
	var urlBits = doSplit(pageBit[0], '/');
	if (navigator.appVersion.substring(0, 3) != '2.0') 
      {
		bitsSize = urlBits.length;
	} 
      else 
      {
		bitsSize = arraySize;
	}
	
	// Build the Basic URL
	var url = doSplit(urlBits[bitsSize - 1], '#');
	var strURL = url[0];
	
	// Process if extra bits
	if (pageSize != 1) 
      {
			
		// Have we naved before
		if (pageBit[1].indexOf('PageNav=') == -1) 
		{
			// No
			strURL += '?PageNav=' + strTarget;
			bParam = true;	
		} 
		else 
		{
			// Yes, are we going to the same place
			if (pageBit[1].indexOf(strTarget) == -1) 
			{
				// No
				var paramBit = doSplit(pageBit[1], '&');
				if (navigator.appVersion.substring(0, 3) != '2.0') 
                        {
					paramSize = paramBit.length;
				} 
                        else 
                        {
					paramSize = arraySize;
				}
				for (var lLoop = 0; lLoop < paramSize; lLoop++) 
				{
					if (paramBit[lLoop].indexOf('PageNav=') != -1) 
					{
						paramBit[lLoop] = 'PageNav=' + strTarget;
					}
					
					if (lLoop > 0) 
					{
						pageBit[1] += '&' + paramBit[lLoop];
					} 
                              else 
                              {
						pageBit[1] = paramBit[lLoop];
					}
				}				
			}
		}
	
		// Add the Parameters if supplied
		if (bParam) 
		{
			strURL += '&' + pageBit[1];
		} 
		else if (pageBit.length != 1) 
		{
			strURL += '?' + pageBit[1];		
		}
		
	} 
	else 
	{
		// Build our Target URL
		strURL += '?PageNav=' + strTarget;
	}
	
	// Remove Category if Changing Category 'tracker 7811 added 'fertilizers'
	if ((strTarget == 'Chemicals') || (strTarget == 'Fertilizers') || (strTarget == 'Crude') || (strTarget == 'Shipping') || (strTarget == 'BaseOils') || (strTarget == 'Conductors')) 
      {
		if (strURL.indexOf('Category=') != -1) 
            {
			var strFront = strURL.slice(0, strURL.indexOf('Category=') -1);
			var strEnd = strURL.slice(strURL.indexOf('Category=') + 10);
			strURL = strFront + strEnd;
		}
	}
	
	// Goto to the page
	//alert('the strURL = ' + strURL);
	window.document.frmGeneral.action = strURL;
	window.document.frmGeneral.submit();
}

function showNews(strURL) 
{	
	
	window.name="Icismainzz1";
	// If there are any subscriber messages to show 												
	if (document.frmGeneral.Messages.value > 0)
	{
		// show the popup window with the news - size is dependant on browser type
		if (navigator.appName.indexOf('Netscape')!=-1) 
		{
			newswin=open(strURL,"News","width=475,height=300,scrollbars=1,location=0,status=0");
		} 
		else 
		{
			newswin=open(strURL,"News","width=490,height=300,scrollbars=1,location=0,status=0");
		}
	}
	
	// Generic Functionality to Get the Browser Type if 
	// Not already available and add to the BrowserType Hidden
	var browser = document.frmGeneral.BrowserType.value;
	if (browser.length == 0) 
      {
		document.frmGeneral.BrowserType.value = navigator.appName;
	}
}

function SubmitAndRedirect(strURL)
{
	document.frmGeneral.action=strURL;
	document.frmGeneral.submit();
}

function listSelect()
{	
		// Get the Value
		var indexValue = document.frmGeneral.navList.selectedIndex;
		var navID = document.frmGeneral.navList.options[indexValue].value;
		
		// Call Page Navigation
		pageNav(navID);
}

function getCheckedUnCheckedIDs(FormName, CheckBoxName) 
{ 
  var sCheckedItemIDs = '';
  var sUnCheckedItemIDs = '';
  
  if (document.forms == null)
  {	
      // Retrieve Previous Information
      sCheckedItemIDs = eval('document.' + FormName + '.txtCheckedIDs.value');
	sUnCheckedItemIDs = eval('document.' + FormName + '.txtUnCheckedIDs.Value');
  }
  else
  {
      // Retrieve Previous Information
      sCheckedItemIDs = eval('document.' + FormName + '.txtCheckedIDs.value');
	sUnCheckedItemIDs = eval('document.' + FormName + '.txtUnCheckedIDs.Value');

    with (eval('document.' + FormName)) 
    {
      // Loop through the Criteria's Form Elements
      for (var i = 0; i < elements.length; i++) 
      {
        if (elements[i].name == CheckBoxName) 
        {
          if (elements[i].checked) 
          {
            // Add them to the list of Checked ItemIds
            sCheckedItemIDs += elements[i].value + ',';
          }
          else
          {
            // This check box is NOT checked.
            sUnCheckedItemIDs += elements[i].value + ',';
          }
        }
      }
    }  //End of the for loop. 
  }
  // Fill in the hidden field values.
  //NOTE: These are default values for the Hidden fields.
  eval('document.' + FormName + '.txtCheckedIDs.value = sCheckedItemIDs');
  eval('document.' + FormName + '.txtUnCheckedIDs.value = sUnCheckedItemIDs');
}

function GetTickedItems() 
{
  var sItemIds = '';
  var s = 0;
  var sname = '';
  
  // DJR 26/09/00
  // Amended following line to force else statement code
  // to be run. 
  if (document.form_null) 
  {	
  //if (document.form_nav) {	
		sItemIds = document.form_nav.CheckedItemIds.value;
		//window.alert('sItemIds = ' + sItemIds);
  } 
  else 
  {
      with (document.frmGeneral) 
      {
          // Loop through the Criteria's Form Elements
	    for (var i = 0; i < elements.length; i++) 
          {
		  // Look at the Item element checkboxes
		  //window.alert((elements[i].name));
			//sname = elements[i].name;
		  // s = sname.indexOf('chk');  
		  if (elements[i].name == 'CheckedItemIds') 
              {
		  //if s.valueOf() > 0 {
			// Only interested in the Checked Items
 		    if (elements[i].checked) 
                {
			  // Add them to the list of Checked ItemIds
			  sItemIds += elements[i].value + ',';
		    }
		 }
	   }
	}
  }
	//alert 'Itemids ' + sItemIds;
  return (sItemIds); 
}

function launch() {
	var newfile = window.open("graph_options.htm","options","resizable=yes,height=150,width=350,scrollbars=auto,location=0,status=0");
	newfile.focus();
}

function launchPA(w) {

//	var newfile = window.open("../../il_secure/il_price_alert/il_home.asp","options","resizable=yes,height=450,width=660,scrollbars=auto,location=0,status=0")

	var newfile = window.open("../../il_secure/il_price_alert/il_home.asp","options","resizable=yes,height=450,width=" + w + ",scrollbars=auto,location=0,status=0");
	// put code here to detect browser type.
	// if IE4 is found do not try to set focus
	// now put back as per JS 24/09/01
	newfile.focus();	
}

function launchPAprompt(w) {

	var newfile = window.open("../../il_secure/il_price_alert/il_message.htm","options","resizable=yes,height=450,width=" + w + ",scrollbars=auto,location=0,status=0");
	newfile.focus()	;
}

function launchPAPopup(w) {
	//alert('Oops');
	if (gblWindowHandle && gblWindowHandle.closed) 
	{
		// Already open so set focus and exit
		if (gblWindowHandle.name = 'options') 
		{
			gblWindowHandle.focus();
			return;
		}
	}
	// If here then we need to open the window and set focus (May need a time delay here)
	var gblWindowHandle = window.open("../../il_secure/il_price_alert/il_popup/pu_nonsubscriber.htm","options","resizable=no,height=450,width=" + w + ",scrollbars=yes,location=0,status=0");
	gblWindowHandle.focus();
}

function doSplit(strString, splitter) {

	// Perform a Javascript Split if available
	if (navigator.appVersion.substring(0, 3) != '2.0') {
		return strString.split(splitter);
	} else {
		return splitIt(strString, splitter);
	}
		
}

function splitIt(strString, splitter) 
{
	var strData = new String(strString);
	var strBits = new String();
	var lenSub = 0;
	var cutBits;
	var nCount = 0;
	
	// Process through the data to find the bits
	while (strData.length != 0)	{	
		
		// Append to the array
		strBits.length = nCount + 1;
			
		if (strData.indexOf(splitter) != -1) 
		{
			lenSub = strData.indexOf(splitter);
			
			strBits[nCount] =  strData.substring(0, lenSub);
			strData = strData.substring((lenSub + 1), strData.length);
		}
		else
		{
			strBits[nCount] = strData;
			strData = '';
		}
		nCount++;
	}
	
	arraySize = nCount;
	return strBits;
}

var bUnloadInCode;

function SaveSubDetails()
{
	// redirect to the same page and save the details 
	// needs to differentiate between a new and an existing user		
	document.frmGeneral.AlreadySaved.value = 'true';
	bUnloadInCode = true;
	if (window.confirm('Save changes?')) {
		document.frmGeneral.GoneThroughConfirm.value = 'true';
	} else {
		document.frmGeneral.GoneThroughConfirm.value = 'false';
	}
	document.frmGeneral.action = document.frmGeneral.HidURL.value;
	//alert('URL = ' + document.frmGeneral.HidURL.value);
	document.frmGeneral.submit();
}

function SavePADetails()
{
	var sItems='';
	// redirect to the same page and save the details 
	// needs to differentiate between a new and an existing user		
	document.frmGeneral.AlreadySaved.value = 'true';
	bUnloadInCode = true;
	if (window.confirm('Save changes?')) {
		document.frmGeneral.GoneThroughConfirm.value = 'true';
	} else {
		document.frmGeneral.GoneThroughConfirm.value = 'false';
	}
	//sItems=GetTickedItems();
	//alert('items '+ sItems);
	//document.frmGeneral.action = "adm_pa_product_list.asp?action=save";
	document.frmGeneral.action = document.frmGeneral.HidURL.value;
	//alert('URL = ' + document.frmGeneral.HidURL.value);
	document.frmGeneral.submit();
}

function SaveDetails()
{
	// redirect to the same page and save the details 
	// needs to differentiate between a new and an existing user		
	document.frmGeneral.AlreadySaved.value = 'true';
	bUnloadInCode = true;
	if (window.confirm('Save changes?')) {
		document.frmGeneral.GoneThroughConfirm.value = 'true';
	} else {
		document.frmGeneral.GoneThroughConfirm.value = 'false';
	}
	document.frmGeneral.action = document.frmGeneral.HidURL.value;
	//alert('URL = ' + document.frmGeneral.HidURL.value);
	document.frmGeneral.submit();
}

function linkclicked(sAction, sURL)
{
		document.frmGeneral.action=sURL;
		document.frmGeneral.RequestedURL.value=sURL;
		document.frmGeneral.ListType.value=sAction;
		document.frmGeneral.submit();
}

function PAAdminHome()
{
	// redirect to adm_price_alert_home.asp
	document.frmGeneral.URL.value = 'adm_price_alert_home.asp';
	document.frmGeneral.action = document.frmGeneral.URL.value;
	document.frmGeneral.submit();
}