javascript笔记——date以及datetime的比较

<script src="$!webPath/resources/js/laydate/laydate.js"></script>
<script src="$!webPath/resources/js/ajaxfileupload.js"></script>
<script src="$!webPath/resources/js/jquery.zh.cn.js" charset="utf-8"></script>
<script>
jQuery(document).ready(function(){
	
  jQuery.validator.methods.amount = function(e) {
	  var coupon_order_amount=jQuery("#coupon_order_amount").val();
	  var coupon_amount=jQuery("#coupon_amount").val();
	  if(parseInt(coupon_order_amount) > parseInt(coupon_amount)){
		  return true;
		  }else{
			  return false;
		  }   
 };
 
  jQuery("#theForm").validate({							  
    rules:{
       coupon_description:{required:true},
	   coupon_name:{required:true},	
	   coupon_begin_time:{required:true},
	   coupon_end_time:{required:true,endTime:"#coupon_begin_time"},
	   coupon_count:{digits:true},
	   coupon_amount:{required:true},
	   coupon_img:{accept:"图片格式只能为$!config.imageSuffix"},
	   coupon_order_amount:{required:true,digits:true}
	 },
    messages:{
      coupon_description:{required:"优惠券信息描述不能为空"},
	  coupon_name:{required:"优惠券名称不能为空"},		
	  coupon_begin_time:{required:"开始时间不能为空"},
	  coupon_end_time:{required:"结束时间不能为空",endTime:"结束日期必须大于开始日期"},
	  coupon_count:{digits:"优惠券只能为整数"},
	  coupon_amount:{required:"优惠券金额不能为空"},
	  coupon_img:{accept:"图片格式只能为$!config.imageSuffix"},
	  coupon_order_amount:{required:"可使用订单金额不能为空",digits:"可使用订单金额只能为整数",min:"可使用订单金额必须大于优惠券金额",amount:"可使用订单金额必须大于优惠券金额"}
	},
	submitHandler:function(){
		var params = jQuery("#theForm").serializeArray();
		var formData= {};
		jQuery.each(params, function(i, param){
			 formData[param.name] = param.value;
		});
		jQuery(".seller_save").attr("disabled","disabled");
		jQuery.ajaxFileUpload({
			  url:‘$!webPath/seller/coupon_save.htm‘,
			  dataType:‘json‘,
			  fileElementId:[‘coupon_img‘],
			  data:formData,
			  success:function(data){		
					var lin = ""+data.url;	
					if(data.ret==true){
	 					showDialog("msg_info","",data.op_title,0,"succeed",3,function(arg){window.location.href=arg},lin,function(){	 						
	 							window.location.href = "$!webPath/seller/coupon.htm";
	 					});
					}
					jQuery(".seller_save").removeAttr("disabled");
			 }
		});		
	}
  });
  function isIE(){
	  if(navigator.userAgent.indexOf("MSIE")!=-1) { 
	        return true
	   } 
	  return false
  }
  jQuery.validator.methods.endTime = function(value, element, param) {
	   debugger;
	   var startDate = jQuery("#coupon_begin_time").val();
	   var date1=new Date(Date.parse(startDate));
	   var date2=new Date(Date.parse(value));
	   
	   if(isIE){
		  date1 = new Date(Date.parse(startDate.replace("-", "/")));
		  date2 = new Date(Date.parse(value.replace("-", "/")));
	   }
	   
	   
	   return date1 <= date2;
  };
});