					$("#captchaValue_field").show();
							//设置验证码Key
							$("#captchaKey").val(captchaKey);
							//设置验证码图片
							replaceCaptcha();
						}
					}
				}
			}	
		},
			"user/control/getSmsCode?&timestamp=" + new Date().getTime(), true,parameter);
	}
	//更换验证码
	function replaceCaptcha(){
		var captchaKey = document.getElementById("captchaKey").value;
		document.getElementById("captcha").src = "captcha/"+captchaKey+".jpg?" + Math.random(); 
	}
</script>
