function sh_li(id)
{
	$(id).style.display = ($(id).style.display == 'none')?'':'none';
}

var b_fly_div = 0;
var fly_div = '';

function get_client_height() {
	return document.compatMode=='CSS1Compat' && !window.opera?document.documentElement.clientHeight:document.body.clientHeight;
}

function scroll_fly_div() {
	if (b_fly_div == 1) {
//		$(fly_div).style.top=(get_client_height()/2)-(91/2)+document.documentElement.scrollTop+'px';
	$(fly_div).style.top=(get_client_height()/2)-(91/2)+$("m_body").scrollTop+'px';
	}
}

function show_fly_div(flag, name) {
	fly_div = name;
	$(fly_div).style.visibility = (flag == 1) ? 'visible' : 'hidden';
	b_fly_div = flag;
	scroll_fly_div();	
	return true;
}


function add_trade_in_cart(item_id) {
	var pars = 'item_id='+item_id;	
	var myAjax = new Ajax.Request( 'ajax/in_cart.php', {method: 'get', parameters: pars, onComplete: add_complete} );
}

function add_complete(request)
{
	result = request.responseText.split('|');
	rub_value = result[1];
	item_name = result[0];
	
	if (rub_value == 0)
	{
		alert("Ошибка");
		show_fly_div(0, 'wait_div');
		return;		
	}
	
	$('trade_name').innerHTML = item_name;
	$('cart_tr_count').innerHTML = parseInt($('cart_tr_count').innerHTML)+1;
	
	var cart_rub_count = parseInt($('cart_rub_count').innerHTML);
	
	cart_rub_count += parseInt(rub_value);
	$('cart_rub_count').innerHTML = cart_rub_count;

	show_fly_div(0, 'wait_div');
	show_fly_div(1, 'tnx_div');
}


function add_trade(item_id)
{
	show_fly_div(1, 'wait_div');
	add_trade_in_cart(item_id);
}


function getBrowserInfo() {
 var t,v = undefined;
 if (window.opera) t = 'Opera';
 else if (document.all) {
  t = 'IE';
  var nv = navigator.appVersion;
  var s = nv.indexOf('MSIE')+5;
  v = nv.substring(s,s+1);
 }
 else if (navigator.appName) t = 'Netscape';
 return {type:t,version:v};
}

function bookmark(a){
 var url = window.document.location;
 var title = window.document.title;
 var b = getBrowserInfo();
 if (b.type == 'IE' && 7 > b.version && b.version >= 4) window.external.AddFavorite(url,title);
 else if (b.type == 'Opera') {
  a.href = url;
  a.rel = "sidebar";
  a.title = url+','+title;
  return true;
 }
 else if (b.type == "Netscape") window.sidebar.addPanel(title,url,"");
 else alert("Нажмите CTRL-D, чтобы добавить страницу в закладки.");
 return false;
}

function gHomePage(objSrc)
{
    var homepage = "http://www.arttext.ru";    
    if (objSrc.style.behavior)    
    {
        // MSIE
        objSrc.setHomePage(homepage);    
    }
    else if (netscape
                && netscape.security 
                && netscape.security.PrivilegeManager 
                && navigator.preference)    
    {
        // Mozilla/FireFox
        netscape.security.PrivilegeManager.enablePrivilege("UniversalPreferencesWrite");        
        navigator.preference("browser.startup.homepage", homepage);    
    }
}