function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function my_zakup(id, url) {
  MM_openBrWindow(url+'/tickets/type/id/'+id,'zakup',"width=950,height=770,top=20,left=20,scrollbars=yes,resizable=yes,status=yes,menubar=yes");
}

function my_zakup_partner(id, url, ref) {
	var partner = '';
	if(ref != '') partner = '/ref/b24_' + ref; 
	MM_openBrWindow(url+'/tickets/type/id/'+id+partner,'zakup',"width=950,height=770,top=20,left=20,scrollbars=yes,resizable=yes,status=yes,menubar=yes");
}