function replaceAll(OldString,FindString,ReplaceString) {
   var SearchIndex = 0;
   var NewString ='';
   while (OldString.indexOf(FindString,SearchIndex) != -1) {
	   NewString += OldString.substring(SearchIndex,OldString.indexOf(FindString,SearchIndex));
	   NewString += ReplaceString;
	   SearchIndex = (OldString.indexOf(FindString,SearchIndex) + FindString.length);
   }
   NewString += OldString.substring(SearchIndex,OldString.length);
   return NewString;
}