function validator()
	{
		if($.trim($("#username").val()) === '')
		{
			$("#usererror").css("display", "block");
			return false;
		}
		else
		{
			$("#usererror").css("display", "none");
		}
		
		if($.trim($("#passwd1").val()) === '')
		{
			$("#passwderror").css("display", "block");
			return false;
		}
		else
		{
			$("#passwderror").css("display", "none");
		}
		
		if($.trim($("#passwd2").val()) === '')
		{
			$("#cpasswderror").css("display", "block");
			return false;
		}
		else
		{
			$("#cpasswderror").css("display", "none");
		}
		
		if($.trim($("#email").val()) === '')
		{
			$("#emailerror").css("display", "block");
			return false;
		}
		else
		{
			$("#emailerror").css("display", "none");
		}
		
		
		if($("#passwd1").val() != $("#passwd2").val())
		{
			alert('两次输入密码不正确！');
			return false;
		}
		
		return true;
	}


//充值判断
function supplement()
{
	if($.trim($("#username").val()) == "")
	{
		alert("请填写用户名");
		return false;
	}
	
	if($("#serial1").val() == "" 
	|| $("#serial2").val() == ""
	|| $("#serial3").val() == ""
	|| $("#serial4").val() == "")
	{
		alert("请填写序列号");
		return false;
	}
	
	return true;
}



jQuery.fn.onlypressnum = function() { 
$(this).css({imeMode:"disabled",'-moz-user-select':"none"}); 
$(this).bind("keypress",function(e){ 
/*alert(e.which); 
$.each(e,function(i,val){ 
alert(i+"|"+val); 
}); 
ialert(e.ctrlKey);*/ 
if(e.ctrlKey == true || e.shiftKey == true) 
return false; 
if((e.which >= 48 && e.which <= 57 && e.ctrlKey == false && e.shiftKey == false) || e.which == 0 || e.which == 8) 
return true; 
else if(e.ctrlKey == true && (e.which == 99 || e.which == 118)) 
return false; 
else 
return false; 
}) 
.bind("contextmenu",function(){return false;}) 
/*.bind("selectstart",function(){return false;})*/
.bind("paste",function(){return false;}); 
};