javascript 惯用验证 _转转转

javascript 常用验证 _转转转

s代码

////----------------Author?Teng-------------??//验证是否为空??function?check_blank(obj,?obj_name){????????if(obj.value?!=?''){?????????????????return?true;??????????}else{??????????????alert(obj_name?+?"所填不能为空！");????????????obj.value?=?"";???????????return?false;??????????}?????}????//过滤输入字符的长度??function?check_str_len(name,obj,maxLength){?????????obj.value=obj.value.replace(/(^\s*)|(\s*$)/g,?"");??????var?newvalue?=?obj.value.replace(/[^\x00-\xff]/g,?"**");???????var?length11?=?newvalue.length;???????if(length11>maxLength){??????????alert(name+"的长度不能超过"+maxLength+"个字符！");??????????obj.value="";??????????obj.focus();???????????}????}????//验证只能为数字??function?checkNumber(obj){??????var?reg?=?/^[0-9]+$/;??????if(obj.value!=""&&!reg.test(obj.value)){??????????alert('只能输入数字！');??????????obj.value?=?"";??????????obj.focus();??????????return?false;??????}??}????//验证数字大小的范围????function?check_num_value(obj_name,obj,minvalue,maxvalue){??????var?reg?=?/^[0-9]+$/;??????if(obj.value!=""&&!reg.test(obj.value)){??????????alert(obj_name+'只能输入数字！');??????????obj.value?=?"";??????????obj.focus();??????????return?false;??????}else?if(minvalue>obj.value||obj.value>maxvalue){??????????alert(obj_name+"的范围是"+minvalue+"-"+maxvalue+"!");??????????obj.value="";??????????obj.focus();??????????return?false;??????}????}????//验证只能是字母和数字??function?checkZmOrNum(zmnum){????var?zmnumReg=/^[0-9a-zA-Z]*$/;????if(zmnum.value!=""&&!zmnumReg.test(zmnum.value)){???????alert("只能输入是字母或者数字,请重新输入");???????zmnum.value="";???????zmnum.focus();???????return?false;????}??}????//验证双精度数字??function?check_double(obj,obj_name){??????var?reg?=?/^[0-9]+(\.[0-9]+)?$/;??????if(obj.value!=""&&!reg.test(obj.value)){??????????alert(obj_name+'所填必须为有效的双精度数字');??????????obj.value?=?"";??????????obj.focus();??????????return?false;??????}??}?????????//复选框全选??function?checkboxs_all(obj,cName){??????var?checkboxs?=?document.getElementsByName(cName);??????for(var?i=0;i<checkboxs.length;i++){??????????checkboxs[i].checked?=?obj.checked;??????}?????}??????//验证邮政编码??function?check_youbian(obj){??????var?reg=/^\d{6}$/;???????if(obj.value!=""&&!reg.test(obj.value)){??????????alert('邮政编码格式输入错误！');??????????obj.value?=?"";??????????obj.focus();??????????return?false;??????}??}????//验证邮箱格式??function?check_email(obj){??????var?reg?=?/^[a-zA-Z0-9_-]+(\.([a-zA-Z0-9_-])+)*@[a-zA-Z0-9_-]+[.][a-zA-Z0-9_-]+([.][a-zA-Z0-9_-]+)*$/;???????if(obj.value!=""&&!reg.test(obj.value)){??????????obj.select();??????????alert('电子邮箱格式输入错误！');??????????obj.value?=?"";??????????obj.focus();??????????return?false;??????}??}????/*验证固定电话号码???0\d{2,3}???代表区号??????[0\+]\d{2,3}???代表国际区号??\d{7,8}?代表7－8位数字(表示电话号码)??正确格式：区号-电话号码-分机号(全写|只写电话号码)?*/????function?check_phone(obj){??????var?reg=/^(([0\+]\d{2,3}-)?(0\d{2,3})-)?(\d{7,8})(-(\d{3,}))?$/;???????if(obj.value!=""&&!reg.test(obj.value)){??????????alert('电话号码格式输入错误！');??????????obj.value?=?"";??????????obj.focus();??????????return?false;??????}??}????//验证手机号码(检验13,15,18开头的手机号！)??function?check_telephone(obj){??????var?reg=?/^[1][358]\d{9}$/;??????if(obj.value!=""&&!reg.test(obj.value)){??????????alert('手机号码格式输入错误！');??????????obj.value?=?"";??????????obj.focus();??????????return?false;??????}??}????//验证是否为中文??function?isChinese(obj,obj_name){??????var?reg=/^[\u0391-\uFFE5]+$/;???????if(obj.value!=""&&!reg.test(obj.value)){??????????alert(obj_name+'必须输入中文！');??????????obj.value?=?"";??????????obj.focus();??????????return?false;??????}??}????//判断是否是IE浏览器????function?checkIsIE(){??????if(-[1,]){??????????alert("这不是IE浏览器！");?????????}else{??????????alert("这是IE浏览器！");?????????}???}????//验证是否为正确网址??function?check_IsUrl(obj){??????}????//检验时间大小(与当前时间比较)??function?checkDate(obj,obj_name){??????var?objvalue=obj.value.replace(/-/g,"/");//替换字符，变成标准格式(检验格式为：'2009-12-10')??????//?var?objvalue=obj.value.replace("-","/");//替换字符，变成标准格式(检验格式为：'2010-12-10?11:12')??????var?date1=new?Date(Date.parse(obj_value));?????????var?date2=new?Date();//取今天的日期??????if(date1>date2){??????????alert(obj_name+"不能大于当前时间！");??????????return?false;??????}??}??///?Copyright???2010-2012?com.zljy.teng.js////?