Q1043 How can I check that an image exists in another frame?

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You can check that an image exists using:

<script language="JavaScript"><!--
if (document.images) {
    if (document.images['myImageName'] ? true : false)
        alert('exists');
    else
        alert('does not exist');
}
//--></script>

To check for an image in another frame:

<script language="JavaScript"><!--
if (document.images) {
    if (parent.myFrameName.images['myImageName'] ? true : false)
        alert('exists');
    else
        alert('does not exist');
}
//--></script>