jQuery Grid Plugin - jqGrid

Hello I have celledit on true and it works fine even save on server works good  too when I press key ENTER but... but the problem is: I try to setRowData when I click on <button> like this : 

$("button").click( function(){

var randomColor = '#'+Math.floor(Math.random()*16777215).toString(16);

for(var i = 0; i < idsOfSelectedRows.length; i++)

{

var suSet=grid.jqGrid('setRowData',idsOfSelectedRows[i],{group:idsOfSelectedRows[0]},{"color":randomColor});

grid.jqGrid('saveRow',"1",

{

"url" : "stockage.php",

"errorfunc":function(){

alert('test');

}

});

}

grid.resetSelection();

});

ALL works just function "saveRow" don't save something on my server !!! my  url: 'stockage.php' is like 'editurl' and I haven't error with 'errorfunc'

Do you have some answer for this please ? in firebug I have no error too 🙁 where is the probleme I do this function on "loadComplet" 🙁 Am I writing/using false code ?