1、身份证验证（带x）

//验证身份证信息（获取出生日期和性别）
function func_CheckSFZ(ob)
{                
    var obj = ob.value;
    obj = obj.toUpperCase();      
    if (!(/(^\d{15}$)|(^\d{17}([0-9]|X)$)/.test(obj)))       
    {     
         alert(‘输入的身份证号长度不对，或者号码不符合规定！\n15位号码应全为数字，18位号码末位可以为数字或X。‘);     
         return false;     
    } 
    var gre = /^(\d{6})(\d{2})([01]\d)([0123]\d)(\d{3})$/;
    var reg = /^(\d{6})(18|19|20)?(\d{2})([01]\d)([0123]\d)(\d{3})([0-9]|X)$/;
    var csny = document.getElementById("txt_CSRQ").value;
    var XB = document.getElementById("sel_XB").value;
    if(obj.value != "")
    {
        if(obj.length == 15 || obj.length == 18)
        {
             
                 if(obj.length == 15)
                 {
                     if(gre.test(obj))
                     { 
                         var year = obj.charAt(6)+obj.charAt(7);
                         if(parseInt(year) < 10)
                         {
                             year = "20"+ year;
                         }
                         else
                         {
                             year = "19"+ year;
                         }                         
                         var month = obj.substring(8,10);
                         var day = obj.substring(10,12);
                         csny = year+"-"+month+"-"+day;  
                        if(parseInt(obj.charAt(14)/2)*2 != obj.charAt(14))
                        XB ="男";
                        else
                        XB = "女";    
                    }
                    else        
                    {
                       alert("提示：身份证格式不正确！");
                       return false;    
                    }                
                 }
                 else if(obj.length == 18)
                 {
                     if(reg.test(obj))
                     { 
                         var year = obj.substring(6,10);
                         var month = obj.substring(10,12);
                         var day = obj.substring(12,14);                       
                         csny = year+"-"+month+"-"+day;                         
                          if(parseInt(obj.charAt(16)/2)*2 != obj.charAt(16))
                            XB ="男";
                            else
                            XB = "女";
                     }
                     else
                     {
                        alert("提示：身份证格式不正确！");
                        return false;    
                     }
                 }  
                 document.getElementById("txt_CSRQ").value = http://www.mamicode.com/csny;    "sel_XB").value = http://www.mamicode.com/XB;            "提示：身份证为15位或者18位！");
            return false;    
        }
    }
    return true;    
}

2、验证金额：

/^-?((\d{1,3}(,\d{3})*?)|\d+)(\.\d{1,2})?$/