[Tilecache] Problems with TileCache and self defined OL map parameters

["tschobber tschöbbi"]

Hi TileCache users ;),

I'm using TileCache and I've defined a layer with self defined parameters in an OLmap.htm file like this one (the new parameter is 'src'):

var layer = new OpenLayers.Layer.WMS("Dynamic raster layer",
                "http://localhost/klima/testows.php?",
                {layers: 'raster', 'src': 'map_1.png', 'format':'image/png'},{visibility: false},{isBaseLayer: true});

Using TileCache I'm able to see A map but the 'map_1.png' is not shown but the default map that is defined in the map file (map_2.png). That means I'm not able to switch the values for parameter 'src' with TileCache. 
How am I able to do this? I'm using .php Mapscript (Mapserver) to dynamicly switch layers.

Hope you can help me!+

Here's my tilecache.cfg entry for this 

[klima]
type=WMSLayer
url= http://localhost/klima_austria/ows.php?
layers=raster
#src= topo.png, map_2.tif, map_1.png, map_1.tif, map_2.png
maxResolution = 420
srs=EPSG:31297
bbox = 91087.511, 251704.726, 707087.511, 594704.726
extension = png
resolutions=420.0, 210.0, 105.0, 52.5, 26.25, 13.125, 6.5625, 3.28125, 1.640625, 0.8203125, 0.41015625, 0.205078125, 0.1025390625, 0.05126953125, 0.025634765625, 0.0128173828125, 470.639002, 2406.250000
extension = png

best regards!


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