var CurrentState = false;
var isFirstTime = true;
function SwichPanels() {
    var AdvancedSearch = $get('AdvancedSearch');
    var StandartSearch = $get('StandartSearch');
    var SearchMode = $get('ctl00_hfSearchMode');


    if (isFirstTime) {
        if (SearchMode.value == 'S')
            CurrentState = true;
        isFirstTime = false;
    }
    if (!CurrentState) {
        StandartSearch.style.display = 'none';
        AdvancedSearch.style.display = '';
    }
    else {
        AdvancedSearch.style.display = 'none';
        StandartSearch.style.display = '';
    }

    CurrentState = !CurrentState;
}