js验证身份证号码,身份证号码开头标识,各省身份证开头数字 js验证身份证是否正确.
//是否是有效的身份证(中国) String.prototype.isIDCard = function() { var iSum=0; var info=""; var sId = this; var aCity={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"}; if(!/^d{17}(d|x)$/i.test(sId)) { return false; } sId=sId.replace(/x$/i,"a"); //非法地区 if(aCity[parseInt(sId.substr(0,2))]==null) { return false; } var sBirthday=sId.substr(6,4)+"-"+Number(sId.substr(10,2))+"-"+Number(sId.substr(12,2)); var d=new Date(sBirthday.replace(/-/g,"/")) //非法生日 if(sBirthday!=(d.getFullYear()+"-"+ (d.getMonth()+1) + "-" + d.getDate())) { return false; } for(var i = 17;i>=0;i--) { iSum += (Math.pow(2,i) % 11) * parseInt(sId.charAt(17 - i),11); } if(iSum%11!=1) { return false; } return true; }