extension of fck_image dialog (for highslide js)

<a href="[Link to image]" class="highslide" onclick="return hs.expand(this, {headingText:'Put Headline here ', captionText:'This contains caption text', slideshowGroup:'Name of image group'})">
    <img src="[Link to thumbnail]" title="" />
</a>

<div>
    <span>HighSlide:</span><br />
    <span>Display this image in detail with HighSlide:
    <input type="checkbox" name="cmbHighSlideActiveValue" id="cmbHighSlideActiveValue" value="active" checked="">
    </span>
    <br />
    <span>Image-Group:</span>
    <br />
    <input id="txtHighSlideGroup" style="WIDTH: 70%" type="text" />
</div>
<div>
    <br />
    <span>Headline:</span><br />
    <input id="txtHighSlideHeading" style="WIDTH: 70%" type="text" />
</div>
<div>
    <br />
    <span>Caption:</span><br />
    <input id="txtHighSlideCaption" style="WIDTH: 70%" type="text" />
</div>

if( oLink.class === 'highslide' ) 
{
    GetE('cmbHighSlideActiveValue').checked = 'checked';
    var sLinkOnClick = oLink.getAttribute( 'onClick' );
            
    OnClickRE = "/return hs.expand(this, {headingText:'([a-zA-Z 0-9]*)', captionText:'([a-zA-Z 0-9]*)', slideshowGroup:'([a-zA-Z0-9]*)'})/";
    OnClickValues = OnClickRE.exec( sLinkOnClick );
    if (OnClickValues !== null)
    {
        GetE('txtHighSlideHeading').value = OnClickValues[0] ;
        GetE('txtHighSlideCaption').value = OnClickValues[1] ;
        GetE('txtHighSlideGroup').value = OnClickValues[2] ;
    }
    else
    {
        GetE('cmbHighSlideActiveValue').checked = '';
        GetE('txtHighSlideHeading').value = '' ;
        GetE('txtHighSlideCaption').value = '' ;
        GetE('txtHighSlideGroup').value = '' ;         
    }
}
else
{
    GetE('cmbHighSlideActiveValue').checked = '';
    GetE('cmbHighSlideGroupValue').value = '';
    GetE('txtHighSlideHeading').value = '';
    GetE('txtHighSlideCaption').value = '';
}