function UpdateCart(cid, quantity, sum){
	
	esm_cookie = " " + document.cookie + ";";
	find_cid = esm_cookie.indexOf(" esm_id="); 
	if (find_cid != -1) {
		original_cid = unescape(esm_cookie.substring(find_cid + 8, find_cid + 29));
		if (cid != original_cid) {
			if (0 + original_cid > 0) {
				window.alert(cid+";"+original_cid);
			}
			document.cookie = "esm_id="+cid+"; path=/;";
		}		
	}else{
		document.cookie = "esm_id="+cid+"; path=/;";	
	}

	
	if ( !document.all){
		esm_sum = document.getElementById('esm_sum');
	}

	esm_sum.innerHTML = sum;

	document.getElementById('esm_hint').style.display = ( sum > 0 ? 'inline' : 'none' );
	
}

// -----------------------------------------------------------------
// значение edit'a
function get_tovar_count(id){

	edit_id = "tovar_"+id;
	if ( document.all ){ // IE
		num	= document.all(edit_id).value;
	}else{	// netscape && mozilla
		num = document.getElementById(edit_id).value;
	}

	return num;

}

// -----------------------------------------------------------------
// открытие окошка, выполняющего регистрацию заказа в базе
function buy_tovar(tovar_id, price, cnt){
	OpenWin('/cgi-bin/cart/cart.pl?tovar_id='+tovar_id+'&cnt='+cnt,null,250,80,1);
}