[TYPO3-english] typoscript logo src=""

[TSniper]

Hello,

i have the src of an img tag of my logo :
<img src="" width="500" height="77" alt="AZEAZE">

the the typoscript code :
lib.field_logo = IMAGE
lib.field_logo.file = {$logoFile}
lib.field_logo.file.width = 500
lib.field_logo.altText = AZEAZE
lib.field_logo.stdWrap.typolink.parameter = 1
lib.field_logo.stdWrap.typolink.parameter.data = leveluid:0

i had cleared the cached images in the instal tool but the image still don't show up.

Thank you in advance for any help