function e(v){
	return document.getElementById(v);
}

function prj_hide_object(v){
	e(v).style.display = 'none';
}

function prj_display_object(v){
	e(v).style.display = '';
}

function  prj_disable_object(v){
	e(v).disabled=true;
}

function  prj_enable_object(v){
	e(v).disabled=false;
}


function _makeRequest(url,param) {
        var http_request = false;

        if (window.XMLHttpRequest) { // Mozilla, Safari, ...
            http_request = new XMLHttpRequest();
            if (http_request.overrideMimeType) {
                http_request.overrideMimeType('text/xml');
                // Читайте ниже об этой строке
            }
        } else if (window.ActiveXObject) { // IE
            try {
                http_request = new ActiveXObject("Msxml2.XMLHTTP");
            } catch (e) {
                try {
                    http_request = new ActiveXObject("Microsoft.XMLHTTP");
                } catch (e) {}
            }
        }

        if (!http_request) {            
            return false;
        }
        http_request.onreadystatechange = function() {_action_request(http_request,param); };
        http_request.open('GET', url, true);
        http_request.send(null);

}
function _action_request(http_request,param) {

    if (http_request.readyState == 4) {
        if (http_request.status == 200) {
            _make_request_action(http_request.responseText,param);
        }
    }

}

function set(w,k){
	if (w.checked == true){
			document.cookie = "ch["+k+"]="+k+"; path=/; expires=Fri, 31 Dec 2030 23:59:59 GMT;";
	}
	else{
		document.cookie = "ch["+k+"]=; path=/";
	}
}

function ci(w){
	var i=parseInt(e('selected_items').innerHTML);

	if (w.checked == true)	i=i+1;	else i=i-1;
	e('selected_items').innerHTML=i;
}