/* Define projection */
var spherMerc = new OpenLayers.Projection('EPSG:900913');
var epsg4326 = new OpenLayers.Projection('EPSG:4326');
var zoom = 14;

/* Define map section */
var l = new OpenLayers.LonLat(8, 53).transform(epsg4326, spherMerc);
var r = new OpenLayers.LonLat(14, 43).transform(epsg4326, spherMerc);
var extent = new OpenLayers.Bounds(l.lon, l.lat, r.lon, r.lat);

/* general variables */
var freex, freex_o_r_p, freex_l_h_s;
var withTransformation = true;
var withoutTransformation = false;
...