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url+='/actions/'+action+'.php?';if(a){url+='arg1='+encodeURIComponent(a);}
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if(document.getElementById('comment').value==''){errors[i++]='Please enter a comment';}
if(document.getElementById('captchacode')&&(document.getElementById('captchacode').value=='')){errors[i++]='Please enter the CAPTCHA code (required to prevent spam)';}
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