Hello, I've spent a few hours trying to understand this strange behaviour:
I have 1 test layer (and hence only 1 test group), almost everything was set to defaults. Procedure in firefox: - Clicking on the checkbox in the toc unchecks it and refresh the map with no layers loades (map is blank), as expected - Clicking again on the checkbox, reloads the map but DO NOT LOAD ANY LAYER. This happens because in javascript/mapserver.js line 336 for (var i=0; i<parent.tocFrame.document.layerform.groupscbx.length; i++) parent.tocFrame.document.layerform.groupscbx.length is undefined if there is just one htmlinput element. Adding an "if" check solved the problem for me: ----------------------------------------------- function getLayers() { var layerstring = "&groups="; if(parent.tocFrame.document.layerform.groupscbx.length){ for (var i=0; i<parent.tocFrame.document.layerform.groupscbx.length; i++) { if (parent.tocFrame.document.layerform.groupscbx[i].checked == true) { layerstring += parent.tocFrame.document.layerform.groupscbx[i].value+'+'; } } } else { if (parent.tocFrame.document.layerform.groupscbx.checked == true){ layerstring += parent.tocFrame.document.layerform.groupscbx.value+'+'; } } layerstring = layerstring.substr(0, layerstring.length - 1); return layerstring; } -- Alessandro Pasotti ICQ# 245871392 Linux User #167502