用js完成身份证校验[定稿]

用js完成身份证校验[定稿] 用JS实现身份证校验 <------------------js检验身份证是否合法 ---------------------> function checkPersonIdandgetValue(control,ad_birthday,as_sex,empty){ control.value = Trim(control.value); var year; var month; var day; var ls_tmp; if( empty == "0" && (control.value == ""||control.value.length == 0)){ return true; } if (empty == "1") { if (control.value == ""||control.value.length == 0) { control.select(); alert("身份证号码录入的数据不能为空" ); return false; } } if (control.value !="") { if (control.value.length==15) { year = "19"+control.value.substr(6,2); month= control.value.substr(8,2); day = control.value.substr(10,2); if (!isDateNumberFormat(month,day,year)) //检验身份证号码中的出生日期部分是否为合法日期 { alert("身份证号码日期部分错误～ "+year+"-"+month+"-"+day); control.select(); return false; } ls_tmp = year+"-"+month+"-"+day; ad_birthday.value=ls_tmp; if (control.value.substr(14,1)%2==1) //身份证号 码的最后一位是否为奇数 as_sex.value="1"; if (control.value.substr(14,1)%2==0) as_sex.value="2"; return true; } if (control.value.length==18) { var ls_sfz; var ls_sign=""; var ls_calculatesign; var li_valid; var li_count; var li_charp; var li_result; ls_sfz = control.value; ls_sign = ls_sfz.substr(17,1); ls_sfz = ls_sfz.substr(0,17); year = control.value.substr(6,4); month= control.value.substr(10,2); day = control.value.substr(12,2); if (!isDateNumberFormat(month,day,year)) { alert("输入的身份证出生年月不合法!!!"); control.focus(); return false; } li_valid = 0; for (li_count=17;li_count>=1;li_count--) { if (isNaN(parseInt(ls_sfz.substr(li_count-1,1)))) { alert("输入的身份证中有不合法的字符!"); control.select(); return false; } li_valid=li_valid+(Math.pow(2,li_count)%11)*ls_sfz.substr(1 7-li_count,1); } li_charp = li_valid%11; if(li_charp==0) ls_calculatesign = "1"; if(li_charp==1) ls_calculatesign = "0"; if(li_charp==2) ls_calculatesign = "X"; if(li_charp==3) ls_calculatesign = "9"; if(li_charp==4) ls_calculatesign = "8"; if(li_charp==5) ls_calculatesign = "7"; if(li_charp==6) ls_calculatesign = "6"; if(li_charp==7) ls_calculatesign = "5"; if(li_charp==8) ls_calculatesign = "4"; if(li_charp==9) ls_calculatesign = "3"; if(li_charp==10) ls_calculatesign = "2"; if (ls_sign.length == 1 && ls_sign != ls_calculatesign) { alert("输入的身份证校验位不合法!!!"); control.select(); return false; } ls_tmp = control.value.substr(6,4)+"-"+control.value.substr(10,2)+"- "+control.value.substr(12,2); ad_birthday.value=ls_tmp; if (control.value.substr(16,1)%2==1) as_sex.value="1"; if (control.value.substr(16,1)%2==0) as_sex.value="2"; return true; } else { alert("身份证号码长度错误～"); control.select(); return false; } } return true; }