In fact, after continuing testing, i've found that the problem, don't come really from the zotero.selectItems. Some explanations:
1-I use a xml var that i fill with a doget and it contains results of the recherche.
2- I loop on that xml var for building the pids var (it's the argument i use for the zotero.selectItems).
The trouble is that the extarnal loop want not do more than 20 iterations. This is the simplified code:

[code]
for(var i=0; i< temp.lastIndexOf("docFreq="); i++)
{
if(temp.substr(i,14) == "escapedValue=\"")
{
//the url wich give details of a book
var newURI = url.substring(url.indexOf("http");

Zotero.wait();
Zotero.Utilities.HTTP.doGet(newURI+id+".xml?fragment=null", function(text3) {
var xml = new XML(text3);

for(var i=0 ; i <xml.book.length() ; i++) {
var book = xml.book[i];
pids[cpt] = Zotero.Utilities.superCleanString(book.title.text().toString());
cpt++;
manageGlobal(text,cpt,pids,newURI,ids);
}
Zotero.done();
})
}
}
[code]

It's on the function manageGlobal that i use Zotero.selectItems.

The trouble is solved, in fact there's a problem with the framework I used (if you need more information see http://www.pleade.org).

Some explanation:

• In my loop I ask pleade for getting the data of a item; but pleade stop to answer after 20 iterations.


• From that, the loop is blocked because it wait the answer from pleade !!!

Thank you for your attention.