function toggleComment(idstr,imgid,total) {
       var div = document.getElementById(idstr);
	   var img = document.getElementById('captchaDiv-'+imgid);
	   var cap = document.getElementById('captchaInput-'+imgid);
       if(div.style.display == 'block') {		   
		  img.innerHTML = '';
		  cap.value = '';
		  div.style.display = 'none';		  
	   }else{
		   for (i=1;i<=total;i++) { 
			var c = document.getElementById('commentNew-'+i);
			var v = document.getElementById('captchaInput-'+imgid);
			v.value = '';
			c.style.display = 'none'
 		  } 
          div.style.display = 'block';
		  img.innerHTML = '<img id="captchaImg-'+imgid+'"  alt="" src="captcha.php?sid=' + Math.random() + '" />';
	   }
}