var commshow = new Array (0,0,0,0,0,0,0,0,0,0);
function showcomments(n){
   var commentid = 'comment' + n;
   //alert(commentid);
    if(commshow[n]==0){
      var combox=document.getElementById(commentid);
          combox.style.display='block';
      commshow[n]=1;
    }
    else{
      var combox=document.getElementById(commentid);
          combox.style.display='none';
      commshow[n]=0;
    }
    return false;
}