javascript date 验证yyyy/MM/dd yyyy-MM-dd

//验证日期格式为 yyyy/MM/dd 或 yyyy-MM-dd
//验证日期格式为 yyyy/MM/dd
//验证日期格式为 yyyy-mm-dd 只需改 reg  \/ 为 -  split("/") 为 split("-");

function checkDate(theDate){
  var reg = /^\d{4}\/((0{0,1}[1-9]{1})|(1[0-2]{1}))\/((0{0,1}[1-9]{1})|([1-2]{1}[0-9]{1})|(3[0-1]{1}))$/;
//小于10都需要加0
//var reg = /^\d{4}\/((0[1-9]{1})|(2[0-2]{1}))\/((0[1-9]{1})|([1-2]{1}[0-9]{1})|(3[0-1]{1}))$/;

var reg2 = /^\d{4}-((0{0,1}[1-9]{1})|(1[0-2]{1}))-((0{0,1}[1-9]{1})|([1-2]{1}[0-9]{1})|(3[0-1]{1}))$/;
  var result=true;
  if(!reg.test(theDate) && !reg2.test(theDate))
    result = false;
  else{
   // var arr_hd=theDate.split("/");
   var arr_hd;
   if(theDate.indexOf("/") != -1){
       arr_hd=theDate.split("/");
   }else if(theDate.indexOf("-") != -1){
       arr_hd=theDate.split("-");
   }
    var dateTmp;
    dateTmp= new Date(arr_hd[0],parseFloat(arr_hd[1])-1,parseFloat(arr_hd[2]));
    //alert(arr_hd[0]+" "+parseFloat(arr_hd[1])-1 +"  "+parseFloat(arr_hd[2]));
   // alert("dateTmp: "+dateTmp);
    if(dateTmp.getFullYear()!=parseFloat(arr_hd[0])
       || dateTmp.getMonth()!=parseFloat(arr_hd[1]) -1
        || dateTmp.getDate()!=parseFloat(arr_hd[2])){
        result = false
    }
  }
  return result;
}
//alert("checkresult: "+checkDate("2001/05/30"));
var a="2010-8-9";
// alert("replace method:  "+a.replace(/-/g, "/"));
//a=a.replace(/-/g,"/");
//alert(a);
//将日期 2010-8-9转换为 2010-08-09
 if(a.indexOf("-") != -1){
     var ab = a.split("-", 3);
     for(var i =0; i<ab.length;i++ ){
         if(ab[i].length<2){
             ab[i]="0"+ab[i];
         }
     }
    // alert(ab.join("/"));//转换日期为 2010/08/09
 }


 function checkDate2(inputDateObj){
   //  alert(inputDate);
     var inputDate = inputDateObj.value;
     if(checkDate(inputDate)){
         inputDateObj.style.border="";
         if(inputDate.indexOf("-") !=-1){
             inputDate = inputDate.replace(/-/g,'/');
         }


          var inputdate = inputDate.split("/",3);
         for(var i = 0; i< inputdate.length; i++ ){
         if(inputdate[i].length<2){
             inputdate[i]="0"+inputdate[i];
         }
     }
    // alert(inputdate.join("/"));
     }else{
         
         inputDateObj.style.border="solid 2px red";
         inputDateObj.focus();
     }

    
 }