obj_form_crossing=document.forms.form_crossing_category;

function on_start_crossing(flag)
  {
   if (!flag) flag=10;
   podcat_start=obj_form_crossing.crossing_podcategory.value;
   if (podcat_start>0)
     {
      obj_form_crossing.submit();
     }
    else
      {
       if (flag==1) alert ("Выберите категорию!");
      }
   
  }

function crossing_on_select_podcat()
  {
   obj_podcat_crossing=obj_form_crossing.crossing_podcategory;
   obj_button_start_crossing=obj_form_crossing.start_crossing;
   if (obj_podcat_crossing.value>0)
     {
      obj_button_start_crossing.disabled=false;
     }
    else
      {
       obj_button_start_crossing.disabled=true;
       
      }
  }
  
function crossing_on_select_category()
  {
   //alert (obj_form);
   obj_podcat_crossing=obj_form_crossing.crossing_podcategory;
   id_cat_select_crossing=obj_form_crossing.crossing_category.value;
   obj_form_crossing.start_crossing.disabled=true;
   if (id_cat_select_crossing>0)
     {
      
      obj_podcat_crossing.disabled=false;
      text_podcat_crossing=obj_form_crossing.crossing_list_podcategory.value;
      //alert (text_podcat);
      mas_podcat_crossing=eval ("("+text_podcat_crossing+")");
      //alert (mas_podcat);
      obj_podcat_crossing.length=1;
      n=1;
      for (i=0;i<mas_podcat_crossing.length;i++)
        {
         
         if (id_cat_select_crossing==mas_podcat_crossing[i]["n_category"])
           {
            obj_podcat_crossing.options[n]=new Option(mas_podcat_crossing[i]["name"],mas_podcat_crossing[i]["id_category"],false,false);
            n++;
           }
         
         
        }
      
      
     }
    else
      {
       obj_podcat_crossing.disabled=true;
       obj_podcat_crossing.options[0].selected=true;
      }
  }