// FUNCTION getFront - extract front part of mainStr prior to searchStr
function getFront(mainStr, searchStr) {
      foundOffset = mainStr.indexOf(searchStr)
      if (foundOffset == -1) {
           return null
      }
      return mainStr.substring(0, foundOffset)
}
// FUNCTION getEnd - extract back end of mainStr after searchStr
function getEnd(mainStr, searchStr) {
     foundOffset = mainStr.indexOf(searchStr)
     if (foundOffset == -1) {
          return null
     }
     return mainStr.substring(foundOffset+searchStr.length, mainStr.length)
}
// FUNCTION replaceString - replace all occurrences of searchStr in mainStr with replaceStr
function replaceString(mainStr, searchStr, replaceStr) {
     var front = getFront(mainStr, searchStr)
     var end = getEnd(mainStr, searchStr)    
     
      while (front != null && end != null) {
           mainStr = front + replaceStr + end
           front = getFront(mainStr, searchStr)
           end = getEnd(mainStr, searchStr)
     }
     return mainStr
}
// FUNCTION init - page initialization
function init() {
   // Check if errors have occured when opening the form
   if ( ErrorMsg != "" ) { 
      alert( "The following errors have occured:\n" + replaceString( ErrorMsg, "|", "\n" ) )
   } else if ( UserPWOK == "false" ) {
          // the user's password has expired, force the user to change it
         var newURL = "/" + PublicSiteDbPath + "/JSRun?openagent&VAL=javascript:chgPW()";
         alert( "Your current password has expired, please change it now." );
         top.location.href = newURL
   }
}