var fc_search = new Array();

fc_search[fc_search.length] = new Array("searchstring", "checkSearch()", "The lenght of searching string have to be 3 characters at least and you cannot search the word \"search\"!");

function checkSearch(){
    var search = document.getElementById('searchInput').value;
    if(search.length>2 && search!="hledat") return true;
    else return false;
}