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Old Pedant · 09-05-2012, 12:05 AM

As your code is written, you would be callling

Code:

remove(layer1)

There is no variable by that name, so when you end up doing

Code:

   alert(removeId)

you will either be doing the equivalent of alert(null) or, esp. in MSIE browsers, alert( the_object_with_the_id_of_layer1 ) (because MSIE treats IDs as object references if you don't override that meaning).

09-05-2012, 12:05 AM	PM User \| #3
Old Pedant Supreme Master coder! Join Date: Feb 2009 Posts: 23,248 Thanks: 59 Thanked 3,998 Times in 3,967 Posts	As your code is written, you would be callling Code: remove(layer1) There is no variable by that name, so when you end up doing Code: alert(removeId) you will either be doing the equivalent of `alert(null)` or, esp. in MSIE browsers, `alert( the_object_with_the_id_of_layer1 )` (because MSIE treats IDs as object references if you don't override that meaning). __________________ An optimist sees the glass as half full. A pessimist sees the glass as half empty. A realist drinks it no matter how much there is.