function getBlk(params){ 
	var data = 'action=blk&rettype=html&name='+params.blk+'&class='+params.blkClass;
	if(typeof(params.m) != 'undefined'){ 
		data += '&m='+params.m; 
	}
	if(typeof(params.t) != 'undefined'){
		data += '&t='+params.t; 
	}
	$.ajax({
		data: data,  
		dataType : 'html', 
		beforeSend : function(){ 
			$('#main').html('<div class="loading"><img src="/images/loader64.gif" /></div>'); 
		}, 
		error: function(request,textStatus,errorThrown){ 
			alert(textStatus); 
		},
		dataFilter: function(data){ 
			alert(data); 
			return data; 
		},
		success: function(data){ 
			$('#main').html(data);
			$('.subTabNavs a:first').trigger('click'); 
		}
	}); 
}