function create_http_object()
{
	var ActiveXTypes = [
		"Microsoft.XMLHTTP",
		"MSXML2.XMLHTTP.5.0",
		"MSXML2.XMLHTTP.4.0",
		"MSXML2.XMLHTTP.3.0",
		"MSXML2.XMLHTTP"
	];

	for( var i = 0; i < ActiveXTypes.length; i++ )
	{
		try
		{
			return new ActiveXObject( ActiveXTypes[i] );
		}
		catch( e )
		{ }
	}

	try
	{
		return new XMLHttpRequest();
	}
	catch( e )
	{ }

	return false;
} 



function obtain_comments (imgId, retElement, page){
		
	
	var client = create_http_object();
	client.open("GET", "ajax/comments.php?id=" + imgId +'&p=' + page  , true);
	client.setRequestHeader('Content-Type', 'text/plain');
	client.send(null);
	
	client.onreadystatechange = function() {	
		
		 if(client.readyState == 4) { 
		  	
			if (client.status == 200){
			
				 document.getElementById(retElement).innerHTML = client.responseText;	
					
			}
			else {
				alert ('Error ' + client.status );	
			}
		 }
		
	}
}