<script type="text/javascript">
	$(function() {
		//$.alert("bxsc");
		$("p").alert("bxsc");
		//$("#bpw").Calculationnumber({
		//	byteLength:10
		//});
		
	});
	
	(function($){
		$.extend({
			alert:function(msn){
				alert(msn+"12");	
			}	
		});
		
		$.fn.extend({
			alert:function(msn){
				alert(msn+"13");	
			}	
		});		
	})(jQuery);
	
	$.fn.Calculationnumber = function(options){
		var settings = jQuery.extend({
			byteLength:20,
			attribute:$(this).attr('id')+"_tag",
			tyle:1
		},options);	
		
		alert(settings.attribute);
	};

</script>