css - jQuery select if no predecessor matches class -

in sharepoint portal trying fix problem lists wider page borders (custom master page) , funny when display on far right. writing jquery function reset width.

my function works fine, fine works in sharepoint dialogues, - don't want work in dialogues!

here method of selecting elements, works.

var elements = $(".s4-wpcell-plain > div > *, #pagebody.s4-ca > div > *"); 

however, want exclude matching if page run in dialogue. now, there .ms-dlgcontent style, way above (like, parent of parent of parent, etc...) of elements i'm using in selector match.

how can match element if there no predecessor matches class?

[update]

well, thank you, faithful jquery gurus such quick responses. tried of techniques , doesn't quite trick, let me explain bit more (sorry didn't think of before).

here css path #pagebody div in dialogue. can see class specifying dialog @ start.

html.ms-dialog body form#aspnetform div#s4-workspace.s4-nosetwidth div#s4-bodycontainer div#ctl00_mso_contentdiv div#pagebody.s4-ca

this css path of #pagebody element regular page.

html body form#aspnetform div#s4-workspace.s4-nosetwidth div#s4-bodycontainer div#ctl00_mso_contentdiv div#pagebody.s4-ca

so, need affect #pagebody main page , not dialogue. keep in mind want avoid selecting based on sharepoint-generated guids.

[edit]

uh, sorry, after looking @ paths, realize have use ms-dialog instead ot ms-dlgcontent. i'll mark answer now.

try this:

var elements = $(".s4-wpcell-plain > div > *, #pagebody.s4-ca > div > *");  var elementsnotindialoge = elements.filter(function() {     return !$(this).parents('.ms-dlgcontent').length; });