[置顶] 在使用JS框架之前自己写的一些工具代码

//[e-mail]版权所有 (*^__^*) 嘻嘻……//function -- Debugfunction debug(msg){if (msg == undefined){msg = 'Not Parameter' ;}alert('Debug: ' + msg);}//function -- DOMfunction $(id){return document.getElementById(id);}function $name(ids){return document.getElementsByName(ids);}//function -- 操作 隐藏/显示 ; 禁用/恢复function hide(obj){obj.style.display="";}function unhide(obj){obj.style.display="none";}function lock(obj){obj.disabled="disabled";}function unlock(obj){obj.disabled="";}function getFocus(obj){obj.focus();}function setSelect(obj){obj.select();}//function -- Form 控件操作function unlockTextInput(id){var obj=$(id);unlock(obj);getFocus(obj);setSelect(obj);}function unlockSelectOption(id){var obj=$(id);unlock(obj);getFocus(obj);}function checkboxVarity(ids) //验证多选框有无选中{   var checkboxobj = $name(ids);    var selectState = false    ;    for(i = 0 ; i < checkboxobj.length ; i++ )    {       if (checkboxobj[i].checked)       {       selectState = true ;        break ;       }    }    return selectState ;}//function -- Cookiefunction createCookie(name, value, days) {    var expires = '';    if (days) {var date = new Date();date.setTime(date.getTime() + (days*24*60*60*1000));var expires = '; expires=' + date.toGMTString();    }    document.cookie = name + '=' + value + expires + '; path=/';}function readCookie(name) {    var cookieCrumbs = document.cookie.split(';');    var nameToFind = name + '=';    for (var i = 0; i < cookieCrumbs.length; i++) {var crumb = cookieCrumbs[i];while (crumb.charAt(0) == ' ') {    crumb = crumb.substring(1, crumb.length); /* delete spaces */}if (crumb.indexOf(nameToFind) == 0) {    return crumb.substring(nameToFind.length, crumb.length);}    }    return null;}function eraseCookie(name) {    createCookie(name, '', -1);}//function -- Base64function stringToBase64(string, padchar) {    return window.btoa(string);}function base64ToString(string) {    string = string.replace(/\s+/g, "");    return window.atob(string);}//function -- 操作Tablefunction getCurrentLineIndex(id){var obj=$(id);return obj.rowIndex;}function getCurrentColumnIndex(id){var obj=$(id);return obj.cellIndex;}//function -- 操作Codefunction codeHightLight(id){var obj=$(id);obj.style.background='#fff';}//Ajax            //define a bool paramter to check IE instance        var xmlhttp = false ;        //check client brower is IE        try {            // If javascript is greater than 5            xmlhttp = new ActiveXObject("MSXML2.XMLHTTP");            //alert("You are using Microsoft Internet Explorer .");        }        catch (e){            //else will use ActiveXObject older version            try {                xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");                //alert("You are using old Microsoft Internet Explorer .");            }            catch (e){                 //using brower is no IE.                 xmlhttp = false ;            }        }        if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {            xmlhttp = new XMLHttpRequest();            //alert("You are not using Microsoft Internet Explorer .");        }function appendText(obj,xmlhttp){if (xmlhttp.readyState == 4 && xmlhttp.status == 200 ){                    obj.innerHTML = xmlhttp.responseText ;            }}        function makerequest(serverpage,objID)        {             var obj = document.getElementById(objID);             xmlhttp.open("GET",serverpage);             xmlhttp.onreadystatechange = appendText(obj,xmlhttp) ;             xmlhttp.send(null) ;        }/** * ################### * ###################        Lalestory 项目中抽取出来的JS功能函数--作者: 许消寒 * ################### *//** * 功能：判断一个字符串是否为空字符串 * 参数：str 检验值 * 返回：TRUE OR FALSE */function isBlank(str){  if(str.length < 1){    return true;  }  for(i = 0; i < str.length; i ++){    if(str.substring(i, i + 1) != ' '){      return false;    }  }    return true;}/** * 功能：检验长度是否正确 * 参数：str 检验值,minlen 最小长度,maxlen 最大长度 * 返回：TRUE OR FALSE */function checkByteLength(str,minlen,maxlen) {if (str == null) return false;//为空返回falsevar l = str.length;var blen = 0;for(i=0; i<l; i++) {//循环取得检验值的长度if ((str.charCodeAt(i) & 0xff00) != 0) {blen ++;}blen ++;}if (blen > maxlen || blen < minlen) {//判断长度是否合法return false;}return true;}/** * 功能：检验用户名是否合法 * 参数：value 检验值 * 返回：TRUE OR FALSE */function validateUsername(value){var patn = /^[a-zA-Z]+[a-zA-Z0-9]+$/; //var patn = /^[^\s]*$/;if(!checkByteLength(value,4,20)) return true;//判断长度是否合法if(!patn.test(value)){//判断格式是否合法return true;}return false; }/** * 功能：检验登陆或者注册的用户名 -- 用户名称至少为4个字符,但是少于20个字符 * 参数：value 检验值 * 返回：TRUE OR FALSE */function checkUserName(value){if(value == '')//判断用户名是否为空，返回false{return false;}if(validateUsername(value))//判断用户名是否合法{return false;}return true;}/** * 功能：检验Email是否合法 * 参数：value 检验值 * 返回：TRUE OR FALSE */function validateEmail(value){var patn=/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;if(!patn.test(value)) return false;//判断Email是否合法return true;}/** * 功能：检验Email * 参数：value 检验值 * 返回：TRUE OR FALSE */function CheckEmail(value){if(value == '')//判断Email是否为空{return false;}if(!validateEmail(value))//判断Email是否合法{return false}return true;}/** * 功能: 检验是否包含特殊字符 * 参数：value 检验值 * 返回：TRUE OR FALSE */ function validateSpecSymbol(value) { return true ;//! /^[a-zA-Z0-9\u4E00-\u9FA5#\]*$/.test(value);}/** * 功能: 检验是否包含特殊字符 * 参数：value 检验值 * 返回：TRUE OR FALSE */function CheckSpecSymbol(value){if(value == '')//判断Email是否为空{return false;}if(!validateSpecSymbol(value))//判断Email是否合法{return false ;}return true;} /** * 功能: 返回指定颜色的文本 * 参数：content 文本 , colorValue为颜色值 , cssClass 为CSS风格 * 返回：TRUE OR FALSE */function getSpeciColorText(content,size,colorValue,cssClass){var str = "<font size='" + size + "' class='" ;str +=  cssClass + "' color='"str += colorValue + "'>" ;str += content + "</font>" ;return str ;}/** * 功能: 在指定的页面标签后放入一张图片 * 参数：parentTagName为指定的页面标签 ,imgsrc为图片路径 * 返回：TRUE OR FALSE */function appendImg(parentTagName,imgsrc){//接收 document.all.yourTagNamevar parentTag = document.getElementsByName(parentTagName)[0] ;var str = "<img src='" + imgsrc + "'>" ;parentTagName.innerHTML = str ;}/* ################################## 在beijingextreme项目中的具体应用 ###############################*///function -- 操作层function $(elementID){return document.getElementById(elementID) ;}function showDiv(divID){var divId = $(divID) ;divId.style.display = "" ;}function hideDiv(divID){var divId = $(divID) ;divId.style.display = "none" ;}