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var realId=new Array(
{exp:channel:entries category="1" channel="designs"}
{if listing_img !=""} //Make sure the field is not empty
"{entry_id}"
<? //Add a comma if not last result
    $counter = {count}; 
    $total = {total_results}; 
    if ($counter != $total){
        echo ",";
    }; 
?>
{/if}
{/exp:channel:entries});

var realId=new Array("1011", "1012", "1013");

var realId=new Array({if "filedir_2large_corpid.png" !=""}"24"
    ,{/if}{if "" !=""}"12"
    ,{/if}{if "" !=""}"11"
    ,{/if}{if "" !=""}"10"
    ,{/if}{if "" !=""}"9"
    ,{/if}{if "" !=""}"8"
    ,{/if}{if "" !=""}"7"
    {/if});

var realId=new Array({exp:channel:entries category="1" channel="designs" search:listing_img="not IS_EMPTY"}"{entry_id}"<? $counter = {count}; $total = {total_results}; if ($counter != $total){echo ",";}; ?>{/exp:channel:entries});