function checkIdcard(idcard){
	  /*var   Errors=new   Array(
	  "验证通过!",
	  "身份证号码位数不对!",
	  "身份证号码出生日期超出范围或含有非法字符!",
	  "身份证号码校验错误!",
	  "身份证地区非法!"
	  );  */
  	var area={11:"北京",12:"天津",13:"河北",14:"山西",15:"内蒙古",
  			  21:"辽宁",22:"吉林",23:"黑龙江",31:"上海",32:"江苏",
  			  33:"浙江",34:"安徽",35:"福建",36:"江西",37:"山东",
  			  41:"河南",42:"湖北",43:"湖南",44:"广东",45:"广西",
  			  46:"海南",50:"重庆",51:"四川",52:"贵州",53:"云南",
  			  54:"西藏",61:"陕西",62:"甘肃",63:"青海",64:"宁夏",
  			  65:"新疆",71:"台湾",81:"香港",82:"澳门",91:"国外"} ;

	  var idcards,Y,JYM;
	  var S,M;
      var birthday = document.getElementById("birthday").value.replace(/-/g, "");
      var genders = document.forms[0].gender;
      var gender;
      if (undefined != genders && null != genders) {
          for (var i = 0; i < genders.length; i ++) {
            if (true == genders[i].checked) {
                gender = genders[i].value;
            }
          }
      } else {
        gender = document.getElementById("gender").value;
      }
	  var idcard_array = new Array();
	  idcard_array = idcard.split("");
	  //地区检验
	  if(area[parseInt(idcard.substr(0,2),10)] == null) {
	    return   Errors[4];
	  }
	  //身份号码位数及格式检验
	  switch(idcard.length){
		  case   15:
              //性别校验
              if (0 == parseInt(idcard.substr(idcard.length - 1, 1), 10) % 2 && "F" != gender
                || 0 != parseInt(idcard.substr(idcard.length - 1, 1), 10) % 2 && "M" != gender) {
                return Errors[6];
              }
              //生日校验
              if (parseInt(idcard.substr(6, 6), 10) != parseInt(birthday.substr(2, 6), 10)) {
                return Errors[5];
              }
			  if((parseInt(idcard.substr(6,2),10)+1900) % 4 == 0
			  	|| ((parseInt(idcard.substr(6,2),10)+1900) % 100 == 0 && (parseInt(idcard.substr(6,2),10)+1900) % 4 == 0 )){
			  	ereg=/^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}$/;//测试出生日期的合法性
			  } else {
			  	ereg=/^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}$/;//测试出生日期的合法性
			  }
			  if(ereg.test(idcard)) {
			   return   Errors[0];
			  } else{
			     return   Errors[2];
			  }
			  break;
		  case   18:
              //性别校验
              if (0 == parseInt(idcard.substr(idcard.length - 2, 1), 10) % 2 && "F" != gender
                || 0 != parseInt(idcard.substr(idcard.length - 2, 1), 10) % 2 && "M" != gender) {
                return Errors[6];
              }
              //生日校验
              if (parseInt(idcard.substr(6, 8), 10) != parseInt(birthday, 10)) {
                return Errors[5];
              }
			  //18位身份号码检测
			  //出生日期的合法性检查
			  //闰年月日:((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))
			  //平年月日:((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))
			  if   ( parseInt(idcard.substr(6,4),10) % 4 == 0
			  		|| (parseInt(idcard.substr(6,4),10) % 100 == 0 && parseInt(idcard.substr(6,4),10)%4 == 0 )){
			  	ereg=/^[1-9][0-9]{5}19[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}[0-9Xx]$/;//闰年出生日期的合法性正则表达式
			  } else {
			  	ereg=/^[1-9][0-9]{5}19[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}[0-9Xx]$/;//平年出生日期的合法性正则表达式
			  }
			  if(ereg.test(idcard)){//测试出生日期的合法性
				  //计算校验位
				  S   =   (parseInt(idcard_array[0],10)   +   parseInt(idcard_array[10],10))   *   7
				  +   (parseInt(idcard_array[1],10)   +   parseInt(idcard_array[11],10))   *   9
				  +   (parseInt(idcard_array[2],10)   +   parseInt(idcard_array[12],10))   *   10
				  +   (parseInt(idcard_array[3],10)   +   parseInt(idcard_array[13],10))   *   5
				  +   (parseInt(idcard_array[4],10)   +   parseInt(idcard_array[14],10))   *   8
				  +   (parseInt(idcard_array[5],10)   +   parseInt(idcard_array[15],10))   *   4
				  +   (parseInt(idcard_array[6],10)   +   parseInt(idcard_array[16],10))   *   2
				  +   parseInt(idcard_array[7],10)   *   1
				  +   parseInt(idcard_array[8],10)   *   6
				  +   parseInt(idcard_array[9],10)   *   3   ;
				  Y   =   S   %   11;
				  M   =   "F";
				  JYM   =   "10X98765432";
				  M   =   JYM.substr(Y,1);//判断校验位
				  if(M   ==   idcard_array[17]){
				  	return   Errors[0];   //检测ID的校验位
				  } else {
				    return   Errors[3];
				  }
			  }  else {
			  	 return   Errors[2];
			  }
			  break;
		  default:
			  return   Errors[1];
			  break;
		  }
}

function checkMobile(mobile){
	var reg=/^(?:13|15)\d{9}$/;
	return reg.test(mobile);
}

function checkTel(s) {
	var reg=/^0\d{2,3}\d{6,8}$/;
	return reg.test(s);
}

function checkTelNew(s) {
	var reg=/^[\x00-\x80]*$/;
	return reg.test(s);
}

function trim(str){  //删除左右两端的空格
 return str.replace(/(^\s*)|(\s*$)/g, "");
}

function checknumber(str) {
    var num = /^\d+$/;
    return num.test(str);
}

function checkemail(email) {
  var rec = /\b(^(\S+@).+((\.com)|(\.net)|(\.org)|(\.info)|(\.edu)|(\.mil)|(\.gov)|(\.biz)|(\.ws)|(\.us)|(\.tv)|(\.cc)|(\..{2,2}))$)\b/;
  return  rec.test(email);
}


function trimTextInputs(formObj){
		var inputs=formObj.getElementsByTagName("input");
		for(i=0;i<inputs.length;i++){
			if(inputs[i].type=='text'){
				inputs[i].value=trim(inputs[i].value);
			}
		}
}

function checkImgFormat(img){
	//var reg = /^[A-Z]:\\{1,2}[^/:\*\?<>\|]+\.(jpg|gif|png|bmp)$/i ;
	var reg = /^.+\.(jpg|gif|png|bmp|jpeg)$/i ;
	if(navigator.userAgent.indexOf("Opera") > -1){
		//reg = /^[a-zA-Z0-9-_]+\.(jpg|gif|png|bmp)$/i;
        return true;
	}
	return reg.test(img);
}


function formatNumber(n){
	n=new Number(n);
	n=n.toFixed(2);
	return '￥'+addCommas(n);
}

function addCommas(nStr)
{
	nStr += '';
	x = nStr.split('.');
	x1 = x[0];
	x2 = x.length > 1 ? '.' + x[1] : '';
	var rgx = /(\d+)(\d{3})/;
	while (rgx.test(x1)) {
		x1 = x1.replace(rgx, '$1' + ',' + '$2');
	}
	return x1 + x2;
}

function checkEmail(emailStr) {
        if (emailStr.length == 0) {
              return true;
        }
		var emailPat=/^(.+)@(.+)$/;
		var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]";
	    var validChars="\[^\\s" + specialChars + "\]";
        var quotedUser="(\"[^\"]*\")";
        var ipDomainPat=/^(\d{1,3})[.](\d{1,3})[.](\d{1,3})[.](\d{1,3})$/;
        var atom=validChars + '+';
        var word="(" + atom + "|" + quotedUser + ")";
        var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
        var domainPat=new RegExp("^" + atom + "(\\." + atom + ")*$");
        var matchArray=emailStr.match(emailPat);
        if (matchArray == null) {
            return false;
        }
        var user=matchArray[1];
        var domain=matchArray[2];
        if (user.match(userPat) == null) {
             return false;
        }
        var IPArray = domain.match(ipDomainPat);
        if (IPArray != null) {
           for (var i = 1; i <= 4; i++) {
           		if (IPArray[i] > 255) {
                         return false;
                }
           }
           return true;
         }
         var domainArray=domain.match(domainPat);
         if (domainArray == null) {
               return false;
         }
         var atomPat=new RegExp(atom,"g");
         var domArr=domain.match(atomPat);
         var len=domArr.length;
         if ((domArr[domArr.length-1].length < 2) ||
            (domArr[domArr.length-1].length > 4)) {
                return false;
          }
         if (len < 2) {
              return false;
         }
         return true;
 }