var PageState = new Function();
PageState.PAGE_OPENED = 0;
PageState.PAGE_EDITED = 1;
PageState.PAGE_SAVE = 2;

PageState.getState = function()
{
   return this.state;
}
PageState.setState = function(state)
{
   this.state = state;
   document.getElementById("__HIDDEN_FIELD_STATE").value = state.toString();
}