function doDate() {

    var month = $("#m").val();
    var year = $("#y").val();
    
    if (month == "" || year == "") 
    {
    
        if (month == "") {
        
            $("#m").effect("highlight", {}, 3000);

        
        }
        
        if (year == "") {
        
            $("#y").effect("highlight", {}, 3000);

        
        }
    }
    else
    {
        document.location = "/lease-negotiation-rental-agreements/?" + escape(month) + "/1/" + escape(year);
    
    }
    

}