function checkData( frm )
    {
        var strExamCode = frm.txtExamCode.value.Trim();
        var strExamName = frm.txtExamName.value.Trim();
        var strIdCard = frm.txtIdCard.value.Trim();
        var strVerify = frm.txtVerify.value.Trim();
        
        if( strExamCode == "" || strExamName == "" || strIdCard == "" )
        {
            alert( "信息必须填写完整！" );
			frm.txtExamCode.focus();
            return false;
        }
        if( strVerify == "" )
        {
            alert( "请输入验证码！" );
            return false;
        }
        if( strExamCode.length != 14 )
        {
            alert( "无效的准考证号！" );
            return false;
        }
        else
        {
            if( strExamCode.toUpperCase().indexOf( "S" ) != 9 )
            {
                alert( "无效的准考证号！" );
                return false;
            }
            
        }
        
        if( !checkIdcard( strIdCard ) )
        {
            alert( "无效的身份证号！" );
            return false;
        }
		if( !CheckCha( strExamName ) )
		{
			alert( "姓名必须是汉字！" );
            return false;
		}
        return true;
    }
    
    function refresh()
    {
        window.document.location = window.document.location;
    }
	
	String.prototype.Trim = function() 
	{ 
		return this.replace(/(^\s*)|(\s*$)/g, ""); 
	} 
	String.prototype.LTrim = function() 
	{ 
		return this.replace(/(^\s*)/g, ""); 
	} 
	String.prototype.RTrim = function() 
	{ 
		return this.replace(/(\s*$)/g, ""); 
	}

    
    window.document.onkeydown = KeyStroke; 
    
    function KeyStroke()
    {
         var key = event.keyCode;
         
         event.srcElement.releaseCapture();
         if(key == 116)
         {
          document.getElementById("Button1").click();
          event.keyCode=0; 
          event.returnValue=false; 
         }
    }
	
	function CheckCha(str)
	{
		var reg=/[\u4E00-\u9FA5]/g;
		//vqr reg = /^[\u4e00-\u9fa5]+$/i;
		if (reg.test(str)){return true;}
		else{return false;}
	}


    
    //--身份证号码验证-支持新的带x身份证
function checkIdcard(idcard)
{ 
var Errors=new Array
( 
"验证通过，此身份证有效!", 
"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(""); 
//地区检验，只检验了省市自治区，没有检验出市县合法性(待完善)
if(area[parseInt(idcard.substr(0,2))]==null) return Errors[4]; 
//身份号码位数及格式检验 
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: 
//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)) % 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)){//测试出生日期的合法性 
//计算校验位 
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);//判断校验位 
if(M == idcard_array[17]) return true; //检测ID的校验位 
else return false; 
} 
else return false; 
break; 
default: 
return false; 
break; 
} 
}