// $Id: common.js,v 1.7 2004/12/28 09:33:07 lludwig Exp $

// test browser info
var isIE = (navigator.appVersion.indexOf("MSIE") >=0) ? true : false;
var isMac = (navigator.appVersion.indexOf("Mac") >=0) ? true : false;
var isWin = (navigator.appVersion.indexOf("Windows") >=0) ? true : false;
var isN6 = (document.getElementById && !document.all) ? true : false;
var isN = (document.layers) ? true : false;
var isOp=(window.opera) ? true: false;
var isSafari = (navigator.appVersion.indexOf("Safari") >=0) ? true : false;
var useLayer = (isN || isN6 || isMac) ? true : false ;
var plat = (navigator.appVersion.indexOf("AOL")>=0 || navigator.appVersion.indexOf("A.O.L.")>=0)? "AOL" : "norm";

// test flash
var flashMaxVersion = 7;
var flashActualVersion = 0;
var flash2Installed = false;
var flash3Installed = false;
var flash4Installed = false;
var flash5Installed = false;
var flash6Installed = false;
var flash7Installed = false;

if(isIE && isWin){
  document.write("<SCRIPT LANGUAGE=VBScript> \n");
  document.write("on error resume next \n");
  document.write("flash2Installed = (IsObject(CreateObject(\"ShockwaveFlash.ShockwaveFlash.2\"))) \n");
  document.write("flash3Installed = (IsObject(CreateObject(\"ShockwaveFlash.ShockwaveFlash.3\"))) \n");
  document.write("flash4Installed = (IsObject(CreateObject(\"ShockwaveFlash.ShockwaveFlash.4\"))) \n");
  document.write("flash5Installed = (IsObject(CreateObject(\"ShockwaveFlash.ShockwaveFlash.5\"))) \n"); 
  document.write("flash6Installed = (IsObject(CreateObject(\"ShockwaveFlash.ShockwaveFlash.6\"))) \n"); 
  document.write("flash7Installed = (IsObject(CreateObject(\"ShockwaveFlash.ShockwaveFlash.7\"))) \n"); 
  document.write("</sc"+"ript>\n");
}

if (navigator.plugins){
  if (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]) {
    var isVersion2 = navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : "";
    var flashDescription = navigator.plugins["Shockwave Flash" + isVersion2].description;
    var flashVersion = parseInt(flashDescription.charAt(flashDescription.indexOf(".") - 1));
    flash2Installed = flashVersion == 2;
    flash3Installed = flashVersion == 3;
    flash4Installed = flashVersion == 4;
    flash5Installed = flashVersion == 5;
    flash6Installed = flashVersion == 6;
    flash7Installed = flashVersion == 7;
    }
}

// determine what version of flash is installed
for (var i = 2; i <= flashMaxVersion; i++){
  if (eval("flash" + i + "Installed") == true){
    flashActualVersion = i;
  }
}       
if(navigator.userAgent.indexOf("WebTV") != -1){
  flashActualVersion = 3;
}

// begin image rotation scripts
function swapImgRestore() {
  var i,x,a=document.MM_sr;
  for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function preloadImages() {
  var d=document;
  if(d.images) {
    if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0) {
      d.MM_p[j]=new Image;
      d.MM_p[j++].src=a[i];
    }
  }
}

function findObj(n, d) {
  var p,i,x;
  if(!d) d=document;
  if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);
  }
  if(!(x=d[n])&&d.all) x=d.all[n];
  for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  return x;
}

function swapImage() {
  var i,j=0,x,a=swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
// end image rotation scripts

function disableForm(theform) {
  if (document.all || document.getElementById) {
    for (i = 0; i < theform.length; i++) {
      var tempobj = theform.elements[i];

      if (tempobj.type.toLowerCase() == "submit" || tempobj.type.toLowerCase() == "reset") tempobj.disabled = true;
    }
  }
}

function externalLinks() {
 if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
   if (anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "external")
     anchor.target = "_blank";
 }
}
window.onload = externalLinks;