//过滤两端空格
function Trim(){
	return this.replace(/\s+$|^\s+/g,"");
}
String.prototype.Trim=Trim;
//获取指定id的object
function getObject(elementId) { 	
	if (document.getElementById) { 
		return document.getElementById(elementId); 
	} else if (document.all) { 
		return document.all[elementId]; 
	} else if (document.layers) { 
		return document.layers[elementId]; 
	} 
}
//获取指定id的form组件的值
function getObjValue(elementId){	
	if(getObject(elementId).value!=undefined)
		return getObject(elementId).value.Trim();
	else
		return "";
}
//创建XMLHttpRequest对象
function CreatXHR(){	
	var xhr;
	try{
		xhr=new XMLHttpRequest();
	}catch(e){
    		var a=['MSXML2.XMLHTTP.5.0','MSXML2.XMLHTTP.4.0','MSXML2.XMLHTTP.3.0','MSXML2.XMLHTTP','MICROSOFT.XMLHTTP.1.0','MICROSOFT.XMLHTTP.1','MICROSOFT.XMLHTTP'];
    		for (var i=0;i<a.length;i++){
      			try{
        			xhr = new ActiveXObject(a[i]);
        			break;
      			}catch(e){}
    		}
  	}
	return xhr;
}
//打开一个窗口
function OpenWindow(Url,Width,Height,WindowObj)
{
	var ReturnStr=showModalDialog(Url,WindowObj,'dialogWidth:'+Width+'pt;dialogHeight:'+Height+'pt;status:no;help:no;scroll:no;status:0;help:0;scroll:0;');
	return ReturnStr;
}
//交换设置表格颜色
function setTableColor(id,bgcolor1,bgcolor2){
	var obj=document.all(id);
	for(var rowcount=0;rowcount<obj.rows.length;rowcount++){
		if(rowcount%2==0){
			obj.rows[rowcount].style.backgroundColor=bgcolor1;
		}else{
			obj.rows[rowcount].style.backgroundColor=bgcolor2;
		}
	}
}
//数字检测
function IsNumber(str){
	exp=/[^0-9()-]/g;
	if(str.search(exp) != -1)
	{
		return false;
	}
	return true;
}
//长度计算，中文为2，英文/字符为1
function sl(str){
	sl1=str.length;
	strLen=0;
	for(i=0;i<sl1;i++){
		if(str.charCodeAt(i)>255) strLen+=2;
	 	else strLen++;
	}
	return strLen;
}
function checkIdcard(idcard){
  var Errors=new Array("身份证号码验证通过","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 idcard,Y,JYM;
  var S,M;
  var idcard_array = new Array();
  idcard_array = idcard.split("");
  if(area[parseInt(idcard.substr(0,2))]==null) return Errors[4];
  switch(idcard.length){
    case 15:
      if ((parseInt(idcard.substr(6,2))+1900) % 4 == 0 || ((parseInt(idcard.substr(6,2))+1900) % 100 == 0 && (parseInt(idcard.substr(6,2))+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}$/;//测试出生日期的合法性
      }
      if(ereg.test(idcard))
        return Errors[0];
      else
        return Errors[2];
    break;
  case 18:
    if ( parseInt(idcard.substr(6,4)) % 4 == 0 || (parseInt(idcard.substr(6,4)) % 100 == 0 && parseInt(idcard.substr(6,4))%4 == 0 )){
      ereg = /^[1-9][0-9]{5}19[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}[0-9Xx]$/;//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)){
      S = (parseInt(idcard_array[0]) + parseInt(idcard_array[10])) * 7 + (parseInt(idcard_array[1]) + parseInt(idcard_array[11])) * 9 + (parseInt(idcard_array[2]) + parseInt(idcard_array[12])) * 10 + (parseInt(idcard_array[3]) + parseInt(idcard_array[13])) * 5 + (parseInt(idcard_array[4]) + parseInt(idcard_array[14])) * 8 + (parseInt(idcard_array[5]) + parseInt(idcard_array[15])) * 4 + (parseInt(idcard_array[6]) + parseInt(idcard_array[16])) * 2 + parseInt(idcard_array[7]) * 1 + parseInt(idcard_array[8]) * 6 + parseInt(idcard_array[9]) * 3 ;
      Y = S % 11;
      M = "F";
      JYM = "10X98765432";
      M = JYM.substr(Y,1);
      if(M == idcard_array[17])
        return Errors[0];
      else
        return Errors[3];
    }
    else
      return Errors[2];
    break;
  default:
    return Errors[1];
    break;
  }
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