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// lwx
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function IdentityCodeValid(code) {
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var city={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 "};
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var tip = "";
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var pass= true;
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if(!code || !/^\d{6}(18|19|20)?\d{2}(0[1-9]|1[12])(0[1-9]|[12]\d|3[01])\d{3}(\d|X)$/i.test(code)){
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tip = "身份证号格式错误";
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pass = false;
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}
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else if(!city[code.substr(0,2)]){
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tip = "地址编码错误";
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pass = false;
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}
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else{
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//18位身份证需要验证最后一位校验位
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if(code.length == 18){
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code = code.split('');
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//∑(ai×Wi)(mod 11)
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//加权因子
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var factor = [ 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2 ];
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//校验位
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var parity = [ 1, 0, 'X', 9, 8, 7, 6, 5, 4, 3, 2 ];
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var sum = 0;
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var ai = 0;
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var wi = 0;
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for (var i = 0; i < 17; i++)
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{
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ai = code[i];
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wi = factor[i];
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sum += ai * wi;
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}
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var last = parity[sum % 11];
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if(parity[sum % 11] != code[17]){
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tip = "校验位错误";
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pass =false;
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}
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}
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}
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//if(!pass) alert(tip);
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return pass;
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} |