// Copyright 2000-2006 Adobe Macromedia Software LLC and its licensors. All rights reserved.

//*************** GLOBALS VARS *****************

var helpDoc = MM.HELP_behCheckBrowser;

//******************* BEHAVIOR FUNCTION **********************

//Flexible interface allows many choices based on browser type an version.
//If Netscape version meets or exceeds the first version, it can stay on the
//same page of send the page to either of the URLs. Same for IE.
//The function accepts the following arguments:
//  NSvers   - float or integer: Netscape browser version number to check against
//  NSpass   - 0,1,2: where to go if the browser version is the same or higher than NSvers:
//               0 means stay on same page (do nothing)
//               1 means go to theURL
//               2 means go to altURL
//  NSnoPass - 0,1,2: where to go if the browser version is the less than NSvers
//  IEvers   - float or integer: Explorer browser version number to check against
//  IEpass   - 0,1,2: where to go if the browser version is the same or higher than IEvers
//  IEnoPass - 0,1,2: where to go if the browser version is the less than IEvers
//  OBpass   - 0,1,2: where to go if other browser is used
//  theURL   - URL, often a filename, URL encoded. (ex: file.htm, http://www.x.com/y.htm)
//  altURL   - URL, often a filename, URL encoded. (ex: file.htm, http://www.x.com/y.htm)
//
//Gets the client browser version number. Checks if the browser is Netscape.
//If the version number >= NSvers, checks if NSpass > 0, then goes to URL or altURL based
//on NSpass. Then does the same for Internet Explorer. If some other browser is use,
//goes to the URL or altURL based on OBpass. Goes to a URL by setting the
//window.location property. Sets the return value global so this code can override the
//link HREF.

function MM_checkBrowser(NSvers,NSpass,NSnoPass,IEvers,IEpass,IEnoPass,OBpass,URL,altURL) { //v5.0
  var newURL='', userAgent=navigator.userAgent, version=0;
  if (userAgent.indexOf('Netscape') != -1) {
  	version = parseFloat(userAgent.substring(userAgent.indexOf('Netscape')+9,userAgent.length));
    if (version >= NSvers) {if (NSpass>0) newURL=(NSpass==1)?URL:altURL;}
    else {if (NSnoPass>0) newURL=(NSnoPass==1)?URL:altURL;}
  } else if (userAgent.indexOf('MSIE') != -1) {
  	version = parseFloat(userAgent.substring(userAgent.indexOf('MSIE')+4,userAgent.length));
    if (version >= IEvers)
     {if (IEpass>0) newURL=(IEpass==1)?URL:altURL;}
    else {if (IEnoPass>0) newURL=(IEnoPass==1)?URL:altURL;}
  } else if (OBpass>0) newURL=(OBpass==1)?URL:altURL;
  if (newURL) { window.location=unescape(newURL); document.MM_returnValue=false; }
}

MM.VERSION_MM_checkBrowser = 5.0; //define latest version number for behavior inspector

//******************* API **********************


//Can be used with any tag and any event

function canAcceptBehavior(){
  return true;
}



//Returns a Javascript function to be inserted in HTML head with script tags.

function behaviorFunction(){
  return "MM_checkBrowser";
}



//Returns fn call to insert in HTML tag <TAG... onEvent='thisFn(arg)'>
//Calls dw.doURLEncoding to encode URLs. Checks validity of all entries.
//For example, if *any* condition uses URL, the URL field cannot be empty.

function applyBehavior() {
  var NSvers, IEvers, URL, altURL;
  var NSpass, NSnoPass, IEpass, IEnoPass, OBpass;

  with (document.theForm) {  // read all values from form
    NSvers = parseFloat(NSversion.value);
    NSpass = NSpassTest.selectedIndex;
    NSnoPass = NSnoPassTest.selectedIndex;
    IEvers = parseFloat(IEversion.value);
    IEpass = IEpassTest.selectedIndex;
    IEnoPass = IEnoPassTest.selectedIndex;
    OBpass = OBpassTest.selectedIndex;
    URL = dw.doURLEncoding(theURL.value);  //URL encode
    altURL = dw.doURLEncoding(theAltURL.value);  //URL encode
  }

  //Check for valid numbers, and URLs exist if required
  if (isNaN(NSvers) || isNaN(IEvers)) return MSG_InvalidVersionNumbers;
  if ((URL=="") && (NSpass==1 || NSnoPass==1 || IEpass==1 || IEnoPass==1 || OBpass==1))
     return MSG_NoURL;
  if ((altURL=="") && (NSpass==2 || NSnoPass==2 || IEpass==2 || IEnoPass==2 || OBpass==2))
     return MSG_NoAltURL;

  //Make sure numbers are floats 4 => 4.0
  NSvers = ""+NSvers;
  if (NSvers.indexOf(".") == -1) NSvers += ".0";
  IEvers = ""+IEvers;
  if (IEvers.indexOf(".") == -1) IEvers += ".0";

  // netscape 6 identifies itself as 5
  if(NSvers == 6.0) NSvers = "5.0";
  updateBehaviorFns("MM_checkBrowser");
  return "MM_checkBrowser("+NSvers+","+NSpass+","+NSnoPass+","+IEvers+","+IEpass+","+IEnoPass+
                          ","+OBpass+",'"+URL+"','"+altURL+"')";
}



//Returns a dummy function call to inform Dreamweaver the type of certain behavior
//call arguments. This information is used by DW to fixup behavior args when the
//document is moved or changed.
//
//It is passed an actual function call string generated by applyBehavior(), which
//may have a variable list of arguments, and this should return a matching mask.
//
//The return values are:
//  URL     : argument could be a file path, which DW will update during Save As...
//  NS4.0ref: arg is an object ref that may be changed by Convert Tables to Layers
//  IE4.0ref: arg is an object ref that may be changed by Convert Tables to Layers
//  other...: argument is ignored

function identifyBehaviorArguments(fnCallStr) {
  var argArray;

  argArray = extractArgs(fnCallStr);
  if (argArray.length == 10) {
    return "other,other,other,other,other,other,other,URL,URL";
  } else {
    return "";
  }
}



//Passed the function call above, takes prior arguments and reloads the UI.
//Converts strings into numbers for list indexes, and decodes URLs.

function inspectBehavior(argStr){
  var argArray = extractArgs(argStr);

  if (argArray.length == 10) { //function name plus 9 args
    with (document.theForm) {  // set all form values from args
      NSversion.value            =          argArray[1];
      if (NSversion.value==5.0) NSversion.value="6.0"
      NSpassTest.selectedIndex   = parseInt(argArray[2]);
      NSnoPassTest.selectedIndex = parseInt(argArray[3]);
      IEversion.value            =          argArray[4];
      IEpassTest.selectedIndex   = parseInt(argArray[5]);
      IEnoPassTest.selectedIndex = parseInt(argArray[6]);
      OBpassTest.selectedIndex   = parseInt(argArray[7]);
      theURL.value               = unescape(argArray[8]);
      theAltURL.value            = unescape(argArray[9]);
    }
  }
}



//**************** LOCAL FUNCTIONS ****************


//Loads a preset list of browser version numbers

function initializeUI() {
  document.theForm.theURL.focus(); //set focus on textbox
  document.theForm.theURL.select(); //set insertion point into textbox
}
