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1. οncοntextmenu="window.event.returnValue=false" 将彻底屏蔽鼠标右键 < table border oncontextmenu =return(false) >< td > no </ table > 可用于Table 2. < body onselectstart ="return false" > 取消选取、防止复制 3. οnpaste="return false" 不准粘贴 4. οncοpy="return false;" oncut="return false;" 防止复制 5. < link rel ="Shortcut Icon" href ="favicon.ico" > IE地址栏前换成自己的图标 6. < link rel ="Bookmark" href ="favicon.ico" > 可以在收藏夹中显示出你的图标 7. < input style ="ime-mode:disabled" > 关闭输入法 8. 永远都会带着框架 < script language ="javascript" > <!-- if (window == top)top.location.href = "frames.htm"; //frames.htm为框架网页 // --></script> 9. 防止被人frame <SCRIPT LANGUAGE=javascript><!-- if (top.location != self.location)top.location=self.location; // --></SCRIPT> 10. 网页将不能被另存为 <noscript><iframe src=*.html></iframe></noscript> 11. <input type=button value=查看网页源代码 onclick="window.location = "view-source:"+ "http://www.pconline.com.cn""> 12.删除时确认 <a href="javascript:if(confirm("确实要删除吗?"))location="boos.asp?&areyou=删除&page=1"">删除</a> 13. 取得控件的绝对位置 //javascript <script language="javascript"> function getIE(e){ var t=e.offsetTop; var l=e.offsetLeft; while(e=e.offsetParent){ t+=e.offsetTop; l+=e.offsetLeft; } alert("top="+t+"/nleft="+l); } </ script > //VBScript < script language ="VBScript" > <!-- function getIE() dim t,l,a,b set a=document.all.img1 t=document.all.img1.offsetTop l=document.all.img1.offsetLeft while a.tagName<>"BODY" set a = a.offsetParent t=t+a.offsetTop l=l+a.offsetLeft wend msgbox "top="&t&chr(13)&"left="&l,64,"得到控件的位置" end function --> </ script > 14. 光标是停在文本框文字的最后 < script language ="javascript" > function cc() { var e = event.srcElement; var r =e.createTextRange(); r.moveStart("character",e.value.length); r.collapse(true); r.select(); } </ script > < input type =text name =text1 value ="123" onfocus ="cc()" > 15. 判断上一页的来源 javascript: document.referrer 16. 最小化、最大化、关闭窗口 < object id =hh1 classid ="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11" > < param name ="Command" value ="Minimize" ></ object > < object id =hh2 classid ="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11" > < param name ="Command" value ="Maximize" ></ object > < OBJECT id =hh3 classid ="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11" > < PARAM NAME ="Command" VALUE ="Close" ></ OBJECT > < input type =button value =最小化 onclick =hh1.Click() > < input type =button value =最大化 onclick =hh2.Click() > < input type =button value =关闭 onclick =hh3.Click() > 本例适用于IE 17.屏蔽功能键Shift,Alt,Ctrl < script > function look(){ if(event.shiftKey) alert("禁止按Shift键!"); //可以换成ALT CTRL } document.onkeydown=look; </ script > 18. 网页不会被缓存 < META HTTP-EQUIV ="pragma" CONTENT ="no-cache" > < META HTTP-EQUIV ="Cache-Control" CONTENT ="no-cache, must-revalidate" > < META HTTP-EQUIV ="expires" CONTENT ="Wed, 26 Feb 1997 08:21:57 GMT" > 或者 < META HTTP-EQUIV ="expires" CONTENT ="0" > 19.怎样让表单没有凹凸感? < input type =text style ="border:1 solid #000000" > 或 < input type =text style ="border-left:none; border-right:none; border-top:none; border-bottom: 1 solid #000000" ></ textarea > 20. < div >< span > & < layer > 的区别? < div > (division)用来定义大段的页面元素,会产生转行 < span > 用来定义同一行内的元素,跟 < div > 的唯一区别是不产生转行 < layer > 是ns的标记,ie不支持,相当于 < div > 21.让弹出窗口总是在最上面: < body onblur ="this.focus();" > 22.不要滚动条? 让竖条没有: < body style ="overflow:scroll;overflow-y:hidden" > </ body > 让横条没有: < body style ="overflow:scroll;overflow-x:hidden" > </ body > 两个都去掉?更简单了 < body scroll ="no" > </ body > 23.怎样去掉图片链接点击后,图片周围的虚线? < a href ="#" onFocus ="this.blur()" >< img src ="logo.jpg" border =0 ></ a > 24.电子邮件处理提交表单 < form name ="form1" method ="post" action ="mailto:****@***.com" enctype ="text/plain" > < input type =submit > </ form > 25.在打开的子窗口刷新父窗口的代码里如何写? window.opener.location.reload() 26.如何设定打开页面的大小 < body onload ="top.resizeTo(300,200);" > 打开页面的位置 < body onload ="top.moveBy(300,200);" > 27.在页面中如何加入不是满铺的背景图片,拉动页面时背景图不动 < STYLE > body { background-image:url(logo.gif); background-repeat:no-repeat; background-position:center;background-attachment: fixed} </ STYLE > 28. 检查一段字符串是否全由数字组成 < script language ="javascript" > <!-- function checkNum(str){ return str.match(//D/)==null} alert(checkNum("1232142141")) alert(checkNum("123214214a1")) // --></script> 29. 获得一个窗口的大小 document.body.clientWidth; document.body.clientHeight 30. 怎么判断是否是字符 if (/[^/x00-/xff]/g.test(s)) alert("含有汉字"); else alert("全是字符"); 31.TEXTAREA自适应文字行数的多少 <textarea rows=1 name=s1 cols=27 onpropertychange="this.style.posHeight=this.scrollHeight"> </textarea> 32. 日期减去天数等于第二个日期 <script language=javascript> function cc(dd,dadd) { //可以加上错误处理 var a = new Date(dd) a = a.valueOf() a = a - dadd * 24 * 60 * 60 * 1000 a = new Date(a) alert(a.getFullYear() + "年" + (a.getMonth() + 1) + "月" + a.getDate() + "日") } cc("12/23/2002",2) </ script > 33. 选择了哪一个Radio < HTML >< script language ="vbscript" > function checkme() for each ob in radio1 if ob.checked then window.alert ob.value next end function </ script >< BODY > < INPUT name ="radio1" type ="radio" value ="style" checked > Style < INPUT name ="radio1" type ="radio" value ="barcode" > Barcode < INPUT type ="button" value ="check" onclick ="checkme()" > </ BODY ></ HTML > 34.脚本永不出错 < SCRIPT LANGUAGE ="javascript" > <!-- Hide function killErrors() { return true; } window.onerror = killErrors; // --> </ SCRIPT > 35.ENTER键可以让光标移到下一个输入框 < input onkeydown ="if(event.keyCode==13)event.keyCode=9" > 36. 检测某个网站的链接速度: 把如下代码加入 < body > 区域中: < script language =javascript > tim=1 setInterval("tim++",100) b=1 var autourl=new Array() autourl[1]="www.njcatv.net" autourl[2]="javacool.3322.net" autourl[3]="www.sina.com.cn" autourl[4]="www.nuaa.edu.cn" autourl[5]="www.cctv.com" function butt(){ document.write("<form name=autof>") for(var i=1;i<autourl.length;i++) document.write("<input type=text name=txt"+i+" size=10 value=测试中……> =》<input type=text name=url"+i+" size=40> =》<input type=button value=GO οnclick=window.open(this.form.url"+i+".value)><br>") document.write("<input type=submit value=刷新></form>") } butt() function auto(url){ document.forms[0]["url"+b].value=url if(tim>200) {document.forms[0]["txt"+b].value="链接超时"} else {document.forms[0]["txt"+b].value="时间"+tim/10+"秒"} b++ } function run(){ for(var i=1;i<autourl.length;i++)document.write("<img src=http://"+autourl+"/"+Math.random()+" width=1 height=1 οnerrοr=auto("http://"+autourl+"")>")} run() </ script > 37. 各种样式的光标 auto :标准光标 default :标准箭头 hand :手形光标 wait :等待光标 text :I形光标 vertical-text :水平I形光标 no-drop :不可拖动光标 not-allowed :无效光标 help :?帮助光标 all-scroll :三角方向标 move :移动标 crosshair :十字标 e-resize n-resize nw-resize w-resize s-resize se-resize sw-resize 38.页面进入和退出的特效 进入页面 < meta http-equiv ="Page-Enter" content ="revealTrans(duration=x, transition=y)" > 推出页面 < meta http-equiv ="Page-Exit" content ="revealTrans(duration=x, transition=y)" > 这个是页面被载入和调出时的一些特效。duration表示特效的持续时间,以秒为单位。transition表示使用哪种特效,取值为1-23: 0 矩形缩小 1 矩形扩大 2 圆形缩小 3 圆形扩大 4 下到上刷新 5 上到下刷新 6 左到右刷新 7 右到左刷新 8 竖百叶窗 9 横百叶窗 10 错位横百叶窗 11 错位竖百叶窗 12 点扩散 13 左右到中间刷新 14 中间到左右刷新 15 中间到上下 16 上下到中间 17 右下到左上 18 右上到左下 19 左上到右下 20 左下到右上 21 横条 22 竖条 23 以上22种随机选择一种 39.在规定时间内跳转 < META http-equiv =V="REFRESH" content ="5;URL=http://www.51js.com" > 40.网页是否被检索 < meta name ="ROBOTS" content ="属性值" > 其中属性值有以下一些: 属性值为"all": 文件将被检索,且页上链接可被查询; 属性值为"none": 文件不被检索,而且不查询页上的链接; 属性值为"index": 文件将被检索; 属性值为"follow": 查询页上的链接; 属性值为"noindex": 文件不检索,但可被查询链接; 属性值为"nofollow": 文件不被检索,但可查询页上的链接。 41、email地址的分割 把如下代码加入 < body > 区域中 < a href ="mailto:webmaster@sina.com" > webmaster@sina.com </ a > 42、流动边框效果的表格 把如下代码加入 < body > 区域中 < SCRIPT > l=Array(6,7,8,9,'a','b','b','c','d','e','f') Nx=5;Ny=35 t="<table border=0 cellspacing=0 cellpadding=0 height="+((Nx+2)*16)+"><tr>" for(x=Nx;x<Nx+Ny;x++) t+="<td width=16 id=a_mo"+x+"> </td>" t+="</tr><tr><td width=10 id=a_mo"+(Nx-1)+"> </td><td colspan="+(Ny-2)+" rowspan="+(Nx)+"> </td><td width=16 id=a_mo"+(Nx+Ny)+"></td></tr>" for(x=2;x<=Nx;x++) t+="<tr><td width=16 id=a_mo"+(Nx-x)+"> </td><td width=16 id=a_mo"+(Ny+Nx+x-1)+"> </td></tr>" t+="<tr>" for(x=Ny;x>0;x--) t+="<td width=16 id=a_mo"+(x+Nx*2+Ny-1)+"> </td>" document.write(t+"</tr></table>") var N=Nx*2+Ny*2 function f1(y){ for(i=0;i<N;i++){ c=(i+y)%20;if(c>10)c=20-c document.all["a_mo"+(i)].bgColor="'#0000"+l[c]+l[c]+"'"} y++ setTimeout('f1('+y+')','1')} f1(1) </ SCRIPT > 43、javascript主页弹出窗口技巧 窗口中间弹出 < script > window.open("http://www.cctv.com","","width=400,height=240,top="+(screen.availHeight-240)/2+",left="+(screen.availWidth-400)/2); </ script > ============ < html > < head > < script language ="LiveScript" > function WinOpen() { msg=open("","DisplayWindow","toolbar=no,directories=no,menubar=no"); msg.document.write("<HEAD><TITLE>哈 罗!</TITLE></HEAD>"); msg.document.write("<CENTER><H1>酷 毙 了!</H1><h2>这 是<B>javascript</B>所 开 的 视 窗!</h2></CENTER>"); } </ script > </ head > < body > < form > < input type ="button" name ="Button1" value ="Push me" onclick ="WinOpen()" > </ form > </ body > </ html > ============== 一、在下面的代码中,你只要单击打开一个窗口,即可链接到赛迪网。而当你想关闭时,只要单击一下即可关闭刚才打开的窗口。 代码如下: < SCRIPT language ="javascript" > <!-- function openclk() { another=open('http://www.ccidnet.com','NewWindow'); } function closeclk() { another.close(); } //--> </ SCRIPT > < FORM > < INPUT TYPE ="BUTTON" NAME ="open" value ="打开一个窗口" onClick ="openclk()" > < BR > < INPUT TYPE ="BUTTON" NAME ="close" value ="关闭这个窗口" onClick ="closeclk()" > </ FORM > 二、上面的代码也太静了,为何不来点动感呢?如果能给页面来个降落效果那该多好啊! 代码如下: < script > function drop(n) { if(self.moveBy){ self.moveBy (0,-900); for(i = n; i > 0; i--){ self.moveBy(0,3); } for(j = 8; j > 0; j--){ self.moveBy(0,j); self.moveBy(j,0); self.moveBy(0,-j); self.moveBy(-j,0); } } } </ script > < body onLoad ="drop(300)" > 三、讨厌很多网站总是按照默认窗口打开,如果你能随心所欲控制打开的窗口那该多好。 代码如下: < SCRIPT LANGUAGE ="javascript" > <!-- Begin function popupPage(l, t, w, h) { var windowprops = "location=no,scrollbars=no,menubars=no,toolbars=no,resizable=yes" + ",left=" + l + ",top=" + t + ",width=" + w + ",height=" + h; var URL = "http://www.80cn.com"; popup = window.open(URL,"MenuPopup",windowprops); } // End --> </ script > < table > < tr > < td > < form name =popupform > < pre > 打开页面的参数 < br > 离开左边的距离: < input type =text name =left size =2 maxlength =4 > pixels 离开右边的距离: < input type =text name =top size =2 maxlength =4 > pixels 窗口的宽度: < input type =text name =width size =2 maxlength =4 > pixels 窗口的高度: < input type =text name =height size =2 maxlength =4 > pixels </ pre > < center > < input type =button value ="打开这个窗口!" onClick ="popupPage(this.form.left.value, this.form.top.value, this.form.width.value, this.form.height.value)" > </ center > </ form > </ td > </ tr > </ table > 你只要在相对应的对话框中输入一个数值即可,将要打开的页面的窗口控制得很好。 44、页面的打开移动 把如下代码加入 < body > 区域中 < SCRIPT LANGUAGE ="javascript" > <!-- Begin for (t = 2; t > 0; t--) { for (x = 20; x > 0; x--) { for (y = 10; y > 0; y--) { parent.moveBy(0,-x); } } for (x = 20; x > 0; x--) { for (y = 10; y > 0; y--) { parent.moveBy(0,x); } } for (x = 20; x > 0; x--) { for (y = 10; y > 0; y--) { parent.moveBy(x,0); } } for (x = 20; x > 0; x--) { for (y = 10; y > 0; y--) { parent.moveBy(-x,0); } } } //--> // End --> </ script > 45、显示个人客户端机器的日期和时间 < script language ="LiveScript" > <!-- Hiding today = new Date() document.write("现 在 时 间 是: ",today.getHours(),":",today.getMinutes()) document.write("<br>今 天 日 期 为: ", today.getMonth()+1,"/",today.getDate(),"/",today.getYear()); // end hiding contents --> </ script > 46、自动的为你每次产生最後修改的日期了: < html > < body > This is a simple HTML- page. < br > Last changes: < script language ="LiveScript" > <!-- hide script from old browsers document.write(document.lastModified) // end hiding contents --> </ script > </ body > </ html > 47、不能为空和邮件地址的约束: < html > < head > < script language ="javascript" > <!-- Hide function test1(form) { if (form.text1.value == "") alert("您 没 写 上 任 何 东 西, 请 再 输 入 一 次 !") else { alert("嗨 "+form.text1.value+"! 您 已 输 入 完 成 !"); } } function test2(form) { if (form.text2.value == "" || form.text2.value.indexOf('@', 0) == -1) alert("这 不 是 正 确 的 e-mail address! 请 再 输 入 一 次 !"); else alert("您 已 输 入 完 成 !"); } // --> </ script > </ head > < body > < form name ="first" > Enter your name: < br > < input type ="text" name ="text1" > < input type ="button" name ="button1" value ="输 入 测 试" onClick ="test1(this.form)" > < P > Enter your e-mail address: < br > < input type ="text" name ="text2" > < input type ="button" name ="button2" value ="输 入 测 试" onClick ="test2(this.form)" > </ body > 48、跑马灯 < html > < head > < script language ="javascript" > <!-- Hide var scrtxt="怎麽样 ! 很酷吧 ! 您也可以试试."+"Here goes your message the visitors to your page will "+"look at for hours in pure fascination"; var lentxt=scrtxt.length; var width=100; var pos=1-width; function scroll() { pos++; var scroller=""; if (pos==lentxt) { pos=1-width; } if (pos<0) { for (var i=1; i<=Math.abs(pos); i++) { scroller=scroller+" ";} scroller=scroller+scrtxt.substring(0,width-i+1); } else { scroller=scroller+scrtxt.substring(pos,width+pos); } window.status = scroller; setTimeout("scroll()",150); } //--> </ script > </ head > < body onLoad ="scroll();return true;" > 这里可显示您的网页 ! </ body > </ html > 49、在网页中用按钮来控制前页,后页和主页的显示。 < html > < body > < FORM NAME ="buttonbar" > < INPUT TYPE ="button" VALUE ="Back" onClick ="history.back()" > < INPUT TYPE ="button" VALUE ="JS- Home" onClick ="location='script.html'" > < INPUT TYPE ="button" VALUE ="Next" onCLick ="history.forward()" > </ FORM > </ body > </ html > 50、查看某网址的源代码 把如下代码加入 < body > 区域中 < SCRIPT > function add() { var ress=document.forms[0].luxiaoqing.value window.location="view-source:"+ress; } </ SCRIPT > 输入要查看源代码的URL地址: < FORM >< input type ="text" name ="luxiaoqing" size =40 value ="http://" ></ FORM > < FORM >< br > < INPUT type ="button" value ="查看源代码" onClick =add() > </ FORM > 51、title显示日期 把如下代码加入 < body > 区域中: < script language ="javascript1.2" > <!--hide var isnMonth = new Array("1月","2月","3月","4月","5月","6月","7月","8月","9月","10月","11月","12月"); var isnDay = new Array("星期日","星期一","星期二","星期三","星期四","星期五","星期六","星期日"); today = new Date () ; Year=today.getYear(); Date=today.getDate(); if (document.all) document.title="今天是: "+Year+"年"+isnMonth[today.getMonth()]+Date+"日"+isnDay[today.getDay()] //--hide--> </ script > 52、显示所有链接 把如下代码加入 < body > 区域中 < script language ="javascript1.2" > <!-- function extractlinks(){ var links=document.all.tags("A") var total=links.length var win2=window.open("","","menubar,scrollbars,toolbar") win2.document.write("<font size='2'>一共有"+total+"个连接</font><br>") for (i=0;i<total;i++){ win2.document.write("<font size='2'>"+links.outerHTML+"</font><br>") } } //--> </ script > < input type ="button" onClick ="extractlinks()" value ="显示所有的连接" > 53、回车键换行 把如下代码加入 < body > 区域中 < script type ="text/javascript" > function handleEnter (field, event) { var keyCode = event.keyCode ? event.keyCode : event.which ? event.which : event.charCode; if (keyCode == 13) { var i; for (i = 0; i < field.form.elements.length; i++) if (field == field.form.elements) break; i = (i + 1) % field.form.elements.length; field.form.elements.focus(); return false; } else return true; } </ script > < form > < input type ="text" onkeypress ="return handleEnter(this, event)" >< br > < input type ="text" onkeypress ="return handleEnter(this, event)" >< br > < textarea > 回车换行 54、确认后提交 把如下代码加入 < body > 区域中 < SCRIPT LANGUAGE ="javascript" > <!-- function msg(){ if (confirm("你确认要提交嘛!")) document.lnman.submit() } //--> </ SCRIPT > < form name ="lnman" method ="post" action ="" > < p > < input type ="text" name ="textfield" value ="确认后提交" > </ p > < p > < input type ="button" name ="Submit" value ="提交" onclick ="msg();" > </ p > </ form > 55、改变表格的内容 把如下代码加入 < body > 区域中 < script language =javascript > var arr=new Array() arr[0]="一一一一一"; arr[1]="二二二二二"; arr[2]="三三三三三"; </ script > < select onchange ="zz.cells[this.selectedIndex].innerHTML=arr[this.selectedIndex]" > < option value =a > 改变第一格 </ option > < option value =a > 改变第二格 </ option > < option value =a > 改变第三格 </ option > </ select > < table id =zz border =1 > < tr height =20 > < td width =150 > 第一格 </ td > < td width =150 > 第二格 </ td > < td width =150 > 第三格 </ td > </ tr > </ table > < script language = " JavaScript " > <!-- var d1 = new Date(); var d2 = new Date();d2.setMonth( 0 );d2.setDate( 1 ); var rq = d1 - d2; var s1 = Math.ceil(rq / ( 24 * 60 * 60 * 1000 )); var s2 = Math.ceil(s1 / 7 );alert( " 今天是本年第 " + s1 + " 天,第 " + s2 + " 周 " ); // --> </ script > private int WeekOfYear( string date) { DateTime curDay = Convert.ToDateTime(date);int firstdayofweek = Convert.ToInt32(Convert.ToDateTime(curDay.Year.ToString() + "-" + "1-1").DayOfWeek);int days = curDay.DayOfYear;int daysOutOneWeek = days - (7 - firstdayofweek);if (daysOutOneWeek <= 0){ return 1;}else{ int weeks = daysOutOneWeek / 7;if (daysOutOneWeek % 7 != 0)weeks ++;return weeks + 1;}} 本文转自高海东博客园博客,原文链接:http://www.cnblogs.com/ghd258/archive/2006/11/03/549179.html,如需转载请自行联系原作者