function load_region(obj)
    {
    req = createRequestObject();
    var data=[];
    data['id']=obj.value;
    serverRequest("/ajax/get_region.php", data, onregionload)
    }

function onregionload(req)
    {
    if (req.readyState == 4)
        {
        if (req.status == 200)
            {
            var txt=req.responseText;
            var sel=document.getElementsByName("sear_city")[0];
            sel.options.length=1;
            var sel=document.getElementsByName("sear_region")[0];
            sel.options.length=1;
            var items=[];
            items=txt.split("|");
            var i=0;
            var tmp;
            for(i=0;i<items.length;i++)
                {
                tmp=items[i].split(":");
                sel.options.length=i+2;
                sel.options[i+1].text = tmp[1];
                sel.options[i+1].value = tmp[0];
                }
            }
        }
    }


function load_city(obj)
    {
    req = createRequestObject();
    var data=[];
    data['id']=obj.value;
    serverRequest("/ajax/get_city.php", data, oncityload)
    }

function oncityload(req)
    {
    if (req.readyState == 4)
        {
        if (req.status == 200)
            {
            var txt=req.responseText;
            var sel=document.getElementsByName("sear_city")[0];
            sel.options.length=1;

            var items=[];
            items=txt.split("|");
            var i=0;
            var tmp;
            for(i=0;i<items.length;i++)
                {
                tmp=items[i].split(":");
                sel.options.length=i+2;
                sel.options[i+1].text = tmp[1];
                sel.options[i+1].value = tmp[0];
                }
            }
        }
    }