function type_change(){
	var type = zakaz.elements['type'].options[zakaz.elements['type'].selectedIndex].value;
    if (type == 11){
	    document.getElementById('type2_field').style.display = "";
    } else {
	    document.getElementById('type2_field').style.display = "none";
    }
}
function showObj(obj) {
    document.getElementById(obj).className = "visible";
}
function hideObj(obj) {
    document.getElementById(obj).className = "hidden";
}