[建筑]Javascript技巧大集合3.doc

Javascript技巧大集合3 171.设置和使用cookie HTML BODY 设置与读取 cookies...BR 写入cookie的值input type=text name=gg INPUT TYPE = BUTTON Value = 设置cookie onClick = Set() INPUT TYPE = BUTTON Value = 读取cookie onClick = Get()BR INPUT TYPE = TEXT NAME = Textbox /BODY SCRIPT LANGUAGE=JavaScript function Set() { var Then = new Date() Then.setTime(Then.getTime() + 60*1000 ) //60秒 document.cookie = Cookie1=+gg.value+;expires=+ Then.toGMTString() } function Get() { var cookieString = new String(document.cookie) var cookieHeader = Cookie1= var beginPosition = cookieString.indexOf(cookieHeader) if (beginPosition != -1) { document.all.Textbox.value = cookieString.substring(beginPosition + cookieHeader.length) } else document.all.Textbox.value = Cookie 未找到! } /SCRIPT /HTML// 172.取月的最后一天 function getLastDay(year,month) { //取年 var new_year = year; //取到下一个月的第一天,注意这里传入的month是从1～12 var new_month = month++; //如果当前是12月，则转至下一年 if(month12) { new_month -=12; new_year++; } var new_date = new Date(new_year,new_month,1); return (new Date(new_date.getTime()-1000*60*60*24)).getDate(); }// 173.判断当前的焦点是组中的哪一个 for(var i=0;i3;i++) if(event.srcElement==bb[i]) break;// 174.实现类 package com.baosight.view.utils; import javax.servlet.jsp.tagext.TagSupport; import javax.servlet.http.HttpSession; public class Mytag extends TagSupport { public int doStartTag() throws javax.servlet.jsp.JspException { boolean canAccess = false; HttpSession session= pageContext.getSession(); if (canAccess) { return EVAL_BODY_INCLUDE; } else { return this.SKIP_BODY; } } } 175.在web.xml中添加定义 taglib taglib-uriguoguo/taglib-uri taglib-location/WEB-INF/abc.tld/taglib-location /taglib 176.标签库中定义abc.tld ?xml version=1.0 encoding=UTF-8? !DOCTYPE taglib PUBLIC -//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN /j2ee/dtds/web-jsptaglibrary_1_1.dtd taglib tlibversion1.0/tlibversion jspversion1.1/jspversion shortnamehr/shortname uriguoguo/uri infoExtra 3 Tag Library/info tag namemytag/name tagclasscom.ba