I really shame on for this question but i could not understand why this is not working
when i delete the : scr += "parent.document.getElemen
= 'http://files.xxx.com/image.aspx?img=" + res + "&w=250&h=250';"
line ,it is working perfectly for A1 element when i use this code in an other page working again the only difference is i use this code in a master page's content page 's iframe
and this code is working on iframe and controlling an item from content's page inside master page
Dim item As New FileAsyncronUploader
res = item.yukle(FileUpload1)
Dim scr = "<script>"
scr += "parent.document.getElementById('Image1A').src = 'http://files.xxx.com/image.aspx?img=" + res + "&w=250&h=250';"
scr += "parent.document.getElementById('A1').style.visibility = 'visible';"
scr += "</script>"