function refreshimg() {
	$("#captchaimage").load('/front/userCenter.do?method=imageReq&radom='+Date.parse(new Date()));
	$("#cimgdiv").show();
	return false;
}

$(document).ready(function() {
	/**
	 * 登录用
	 */
	$("#loginForm").validate( {
		focusInvalid: false,   
		   onkeyup: false ,
		focusCleanup : true,
		onsubmit:true,
		rules : {
			userName : {
				required : true,
				checkUTF8StringMinLength : 3,
				checkUTF8StringLength:15,
				remote : "/front/userCenter.do?method=validateUserName&isLoginFlag=true"
			},
			password : {
				required : true,
				minlength : 3
			},
			captcha : {
				required : true,
				remote :{
				url:"/front/userCenter.do?method=validateImage",
				dataType : "json",
				data : {
					timestamp : function() {
						return Date.parse(new Date());
					}
				}
			}
			}
		},messages : {
			userName : {
			remote : "用户名不正确"
			}
		},
		errorElement : "div",
		wrapper : "div",
		errorPlacement : function(error, element) {
			offset = element.offset();
			error.insertBefore(element);
			error.addClass('message');
			error.css('position', 'absolute');
			error.css('left', offset.left + element.outerWidth());
			if(element.attr('name')=='captcha'){
				error.css('left', offset.left + element.outerWidth()+30);
			}
			error.css('top', offset.top);
		}
	});
	$("#cimgdiv").hide();
	
	$("#cimgdiv").css( "left", $('#captcha').offset().left);
	$("#cimgdiv").css( "top", $('#captcha').offset().top-30); 

	
	$("#captcha").focus(function(){
		$("#cimgdiv").show();
	});
	
	$("#captcha").blur(function(){
		$("#cimgdiv").hide();
	});
	
	$("#refreshimg").click(function() {
		$("#captchaimage").load('/front/userCenter.do?method=imageReq');
		$("#cimgdiv").show();
		return false;
	});
	
});