//Reloads the window if Nav4 resized
function MM_reloadPage(init) {
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

// Open Browser Window
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}


function MM_findObj(n, d) { //v4.0
  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);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}

// the second parameter passed to the show hide function determines the display property of an object
// this feature was added to function
function MM_showHideLayers() { //v3.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; }
    obj.visibility=v; if (args[i+1] == '0') obj.display = 'none'; if (args[i+1] == '1') obj.display = 'inline';}
}

//
function chngURL(url){
document.location=url;
}

//
function imgChng(){
  var fileName = document.location.pathname;
  //if(fileName=='two_column_test.htm'){ alert('test')}
  var first=fileName.lastIndexOf("/");
  var last=fileName.length;
  fileName=fileName.substring(first+1,last);
  if((fileName=="quick_resources.htm") || (fileName=="public_announcements.htm") || (fileName=="featured_links.htm")){
  document.images[0].src="images/upnav_welcome.gif";
  }
  if(fileName=="serve_info.htm"){
  document.images[0].src="images/upnav_welcome.gif";
  }
  if(fileName=="bus_info.htm"){
  document.images[0].src="images/upnav_welcome.gif";
  }
  if(fileName=="gen_info.htm"){
  document.images[0].src="images/upnav_welcome.gif";
  }
}

// Close window and redirect opener
function closeWindow(url)
{
self.opener.location = url;
window.close();
}

//Formatting a string
var digits = "0123456789"
var lowercaseLetters = "abcdefghijklmnopqrstuvwxyz"
var uppercaseLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
var AlphaNumeric = uppercaseLetters + lowercaseLetters + digits + " "
function stripCharsNotInBag (s, bag)
{   var i;
    var returnString = "";
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (bag.indexOf(c) != -1) returnString += c;
    }
    return returnString;
}

//Trims spaces on a string
function trim(inputString) {
   // Removes leading and trailing spaces from the passed string. Also removes
   // consecutive spaces and replaces it with one space. If something besides
   // a string is passed in (null, custom object, etc.) then return the input.
   if (typeof inputString != "string") { return inputString; }
   var retValue = inputString;
   var ch = retValue.substring(0, 1);
   while (ch == " ") { // Check for spaces at the beginning of the string
      retValue = retValue.substring(1, retValue.length);
      ch = retValue.substring(0, 1);
   }
   ch = retValue.substring(retValue.length-1, retValue.length);
   while (ch == " ") { // Check for spaces at the end of the string
      retValue = retValue.substring(0, retValue.length-1);
      ch = retValue.substring(retValue.length-1, retValue.length);
   }
   while (retValue.indexOf("  ") != -1) { // Note that there are two spaces in the string - look for multiple spaces within the string
      retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); // Again, there are two spaces in each of the strings
   }
   return retValue; // Return the trimmed string back to the user
} // Ends the "trim" function