[OpenLayers-Users] Vector layer - getting error "this.renderer has no properties"

[Nick Whitelegg]

Hello everyone,

I'm coming across a problem I can't figure out in "osmajax", the OpenLayers 
Vector-based OSM editor I'm developing, at

http://www.free-map.org.uk/freemap/javascript/osmajax-0.5/index.php

The problem relates to the search facility, which moves to another location. 
If you select a feature before doing a search, errors continuously come up 
reading

this.renderer has no properties (OpenLayers.js line 710)

when you arrive at the new location. (However, the vector data for the new 
location is correctly loaded and displayed properly). The problem does not 
arise if a feature is not selected before doing the search. This can be 
demonstrated in the default location by selecting a feature, and then 
entering "Durley" in the search box.

My code to set the centre of the map (in Osmajax.js, occurs in response to the 
search):

    this.setCentre = function(latlon)
    {
        if(this.selectedFeature)
            this.vectorLayer.removeFeatures(this.selectedFeature);
        this.vectorLayer.destroy();
        this.vectorLayer=null;
        var cvtr=new converter("Mercator");
        var prjLL = cvtr.normToCustom(latlon);
        this.map.setCenter(prjLL, this.map.getZoom() );
        this.vectorLayer = new OpenLayers.Layer.OSM("OSM 
Layer",this.statusMsg);
        this.setupControls();
        this.map.addLayer(this.vectorLayer);
        this.load();
    }

(I have to delete the layer and create it again, as otherwise, Firefox chokes 
because the extent of the vector layer is too large).

Any ideas what might be wrong here? Using OpenLayers 2.4.

Thanks,
Nick