实例如下：
//定义当前是否大写的状态 window.onload= function() { password1=null; initCalc(); } var CapsLockValue=0; var check; function setVariables() { tablewidth=630; // logo width, in pixels tableheight=20; // logo height, in pixels if (navigator.appName == "Netscape") { horz=".left"; vert=".top"; docStyle="document."; styleDoc=""; innerW="window.innerWidth"; innerH="window.innerHeight"; offsetX="window.pageXOffset"; offsetY="window.pageYOffset"; } else { horz=".pixelLeft"; vert=".pixelTop"; docStyle=""; styleDoc=".style"; innerW="document.body.clientWidth"; innerH="document.body.clientHeight"; offsetX="document.body.scrollLeft"; offsetY="document.body.scrollTop"; } } function checkLocation() { if (check) { objectXY="softkeyboard"; var availableX=eval(innerW); var availableY=eval(innerH); var currentX=eval(offsetX); var currentY=eval(offsetY); x=availableX-tablewidth+currentX; //y=availableY-tableheight+currentY; y=currentY; evalMove(); } setTimeout("checkLocation()",0); } function evalMove() { //eval(docStyle + objectXY + styleDoc + horz + "=" + x); eval(docStyle + objectXY + styleDoc + vert + "=" + y); } self.onError=null; currentX = currentY = 0; whichIt = null; lastScrollX = 0; lastScrollY = 0; NS = (document.layers) ? 1 : 0; IE = (document.all) ? 1: 0; function heartBeat() { if(IE) { diffY = document.body.scrollTop; diffX = document.body.scrollLeft; } if(NS) { diffY = self.pageYOffset; diffX = self.pageXOffset; } if(diffY != lastScrollY) { percent = .1 * (diffY - lastScrollY); if(percent > 0) percent = Math.ceil(percent); else percent = Math.floor(percent); if(IE) document.all.softkeyboard.style.pixelTop += percent; if(NS) document.softkeyboard.top += percent; lastScrollY = lastScrollY + percent;} if(diffX != lastScrollX) { percent = .1 * (diffX - lastScrollX); if(percent > 0) percent = Math.ceil(percent); else percent = Math.floor(percent); if(IE) document.all.softkeyboard.style.pixelLeft += percent; if(NS) document.softkeyboard.left += percent; lastScrollX = lastScrollX + percent; } } function checkFocus(x,y) { stalkerx = document.softkeyboard.pageX; stalkery = document.softkeyboard.pageY; stalkerwidth = document.softkeyboard.clip.width; stalkerheight = document.softkeyboard.clip.height; if( (x > stalkerx && x < (stalkerx+stalkerwidth)) && (y > stalkery && y < (stalkery+stalkerheight))) return true; else return false;} function grabIt(e) { check = false; if(IE) { whichIt = event.srcElement; while (whichIt.id.indexOf("softkeyboard") == -1) { whichIt = whichIt.parentElement; if (whichIt == null) { return true; } } whichIt.style.pixelLeft = whichIt.offsetLeft; whichIt.style.pixelTop = whichIt.offsetTop; currentX = (event.clientX + document.body.scrollLeft); currentY = (event.clientY + document.body.scrollTop); } else { window.captureEvents(Event.MOUSEMOVE); if(checkFocus (e.pageX,e.pageY)) { whichIt = document.softkeyboard; StalkerTouchedX = e.pageX-document.softkeyboard.pageX; StalkerTouchedY = e.pageY-document.softkeyboard.pageY;} } return true; } function moveIt(e) { if (whichIt == null) { return false; } if(IE) { newX = (event.clientX + document.body.scrollLeft); newY = (event.clientY + document.body.scrollTop); distanceX = (newX - currentX); distanceY = (newY - currentY); currentX = newX; currentY = newY; whichIt.style.pixelLeft += distanceX; whichIt.style.pixelTop += distanceY; if(whichIt.style.pixelTop < document.body.scrollTop) whichIt.style.pixelTop = document.body.scrollTop; if(whichIt.style.pixelLeft < document.body.scrollLeft) whichIt.style.pixelLeft = document.body.scrollLeft; if(whichIt.style.pixelLeft > document.body.offsetWidth - document.body.scrollLeft - whichIt.style.pixelWidth - 20) whichIt.style.pixelLeft = document.body.offsetWidth - whichIt.style.pixelWidth - 20; if(whichIt.style.pixelTop > document.body.offsetHeight + document.body.scrollTop - whichIt.style.pixelHeight - 5) whichIt.style.pixelTop = document.body.offsetHeight + document.body.scrollTop - whichIt.style.pixelHeight - 5; event.returnValue = false; } else { whichIt.moveTo(e.pageX-StalkerTouchedX,e.pageY-StalkerTouchedY); if(whichIt.left < 0+self.pageXOffset) whichIt.left = 0+self.pageXOffset; if(whichIt.top < 0+self.pageYOffset) whichIt.top = 0+self.pageYOffset; if( (whichIt.left + whichIt.clip.width) >= (window.innerWidth+self.pageXOffset-17)) whichIt.left = ((window.innerWidth+self.pageXOffset)-whichIt.clip.width)-17; if( (whichIt.top + whichIt.clip.height) >= (window.innerHeight+self.pageYOffset-17)) whichIt.top = ((window.innerHeight+self.pageYOffset)-whichIt.clip.height)-17; return false;} return false; } function dropIt() {whichIt = null; if(NS) window.releaseEvents (Event.MOUSEMOVE); return true; } if(NS) {window.captureEvents(Event.MOUSEUP|Event.MOUSEDOWN); window.onmousedown = grabIt; window.onmousemove = moveIt; window.onmouseup = dropIt; } if(IE) { document.onmousedown = grabIt; document.onmousemove = moveIt; document.onmouseup = dropIt; } // if(NS || IE) action = window.setInterval("heartBeat()",1); document.write("<DIV align=center id="softkeyboard" name="softkeyboard"> <table id="CalcTable" width="" border="0" align="center" cellpadding="0" cellspacing="0" bgcolor=""> <FORM id=Calc name=Calc action="" method=post autocomplete="off"> <tr> <td title="为保证后台登陆安全,建议使用输入器输入帐号密码" align="right" valign="middle" bgcolor=""> <INPUT type=hidden value="" name=password> <INPUT type=hidden value=ok name=action2> <font>-+-www.soojs.com㊣后台管理帐号密码输入器-+-</font> <INPUT type=button value="使用键盘输入" bgtype="1" onclick="password1.readOnly=0;password1.focus();softkeyboard.style.display='none';password1.value='';"><span></span></td> </tr> <tr align="center"> <td align="center" bgcolor="#FFFFFF"> <table align="center" width="%" border="0" cellspacing="1" cellpadding="0">n <tr align="left" valign="middle"> n <td> <input type=button value=" ~ "></td>n <td> <input type=button value=" ! "></td>n <td> <input type=button value=" @ "></td>n <td> <input type=button value=" # "></td>n <td> <input type=button value=" $ "></td>n <td> <input type=button value=" % "></td>n <td> <input type=button value=" ^ "></td>n <td> <input type=button value=" & "></td>n <td> <input type=button value=" * "></td>n <td> <input type=button value=" ( "></td>n <td> <input type=button value=" ) "></td>n <td> <input type=button value=" _ "></td>n <td> <input type=button value=" + "></td>n <td> <input type=button value=" | "></td>n <td colspan="1" rowspan="2"> <input name="button10" type=button value=" 退格" onclick="setpassvalue();" onDblClick="setpassvalue();"> n </td>n </tr>n <tr align="left" valign="middle"> n <td> <input type=button value=" ` "></td>n <td> <input type=button value=" 1 "></td>n <td> <input type=button value=" 2 "></td>n <td> <input type=button value=" 3 "></td>n <td> <input type=button value=" 4 "></td>n <td> <input type=button value=" 5 "></td>n <td> <input type=button value=" 6 "></td>n <td> <input type=button value=" 7 "></td>n <td> <input type=button value=" 8 "></td>n <td> <input type=button value=" 9 "></td>n <td> <input name="button6" type=button value=" 0 "></td>n <td> <input type=button value=" - "></td>n <td> <input type=button value=" = "></td>n <td> <input type=button value=" "></td>n <td> </td>n </tr>n <tr align="left" valign="middle"> n <td> <input type=button value=" q "></td>n <td> <input type=button value=" w "></td>n <td> <input type=button value=" e "></td>n <td> <input type=button value=" r "></td>n <td> <input type=button value=" t "></td>n <td> <input type=button value=" y "></td>n <td> <input type=button value=" u "></td>n <td> <input type=button value=" i "></td>n <td> <input type=button value=" o "></td>n <td> <input name="button8" type=button value=" p "></td>n <td> <input name="button9" type=button value=" { "></td>n <td> <input type=button value=" } "></td>n <td> <input type=button value=" [ "></td>n <td> <input type=button value=" ] "></td>n <td><input name="button9" type=button onClick="capsLockText();setCapsLock();" onDblClick="capsLockText();setCapsLock();" value="切换大/小写"></td>n </tr>n <tr align="left" valign="middle"> n <td> <input type=button value=" a "></td>n <td> <input type=button value=" s "></td>n <td> <input type=button value=" d "></td>n <td> <input type=button value=" f "></td>n <td> <input type=button value=" g "></td>n <td> <input type=button value=" h "></td>n <td> <input type=button value=" j "></td>n <td> <input name="button3" type=button value=" k "></td>n <td> <input name="button4" type=button value=" l "></td>n <td> <input name="button5" type=button value=" : "></td>n <td> <input name="button7" type=button value=" " "></td>n <td> <input type=button value=" ; "></td>n <td> <input type=button value=" ' "></td>n <td rowspan="2" colspan="2"> <input name="button12" type=button onclick="OverInput();" value=" 确定 "></td>n </tr>n <tr align="left" valign="middle"> n <td> <input name="button2" type=button value=" z "></td>n <td> <input type=button value=" x "></td>n <td> <input type=button value=" c "></td>n <td> <input type=button value=" v "></td>n <td> <input type=button value=" b "></td>n <td> <input type=button value=" n "></td>n <td> <input type=button value=" m "></td>n <td> <input type=button value=" < "></td>n <td> <input type=button value=" > "></td>n <td> <input type=button value=" "></td>n <td> <input type=button value=" , "></td>n <td> <input type=button value=" . "></td>n <td> <input type=button value=" / "></td>n </tr>n </table></td> </FORM> </tr> </table></DIV>") //给输入的密码框添加新值 function addValue(newValue) { if (CapsLockValue==0) { var str=Calc.password.value; if(str.length<password1.maxLength) { Calc.password.value += newValue; } if(str.length<=password1.maxLength) { password1.value=Calc.password.value; } } else { var str=Calc.password.value; if(str.length<password1.maxLength) { Calc.password.value += newValue.toUpperCase(); } if(str.length<=password1.maxLength) { password1.value=Calc.password.value; } } } //实现BackSpace键的功能 function setpassvalue() { var longnum=Calc.password.value.length; var num num=Calc.password.value.substr(0,longnum-1); Calc.password.value=num; var str=Calc.password.value; password1.value=Calc.password.value; } //输入完毕 function OverInput() { //m_pass.mempass.value=Calc.password.value; var str=Calc.password.value; password1.value=Calc.password.value; //alert(theForm.value); //theForm.value=m_pass.mempass.value; softkeyboard.style.display="none"; Calc.password.value=""; password1.readOnly=1; //password1.value=Calc.password.value; } //关闭软键盘 function closekeyboard(theForm) { //eval("var theForm="+theForm+";"); //theForm.value=""; softkeyboard.style.display="none"; //Calc.password.value=""; } //显示软键盘 function showkeyboard() { if(event.y+140) softkeyboard.style.top=event.y+document.body.scrollTop+15; if((event.x-250)>0) { softkeyboard.style.left=event.x-250; } else { softkeyboard.style.left=0; } softkeyboard.style.display="block"; password1.readOnly=1; password1.blur(); //password1.value=""; } //设置是否大写的值 function setCapsLock() { if (CapsLockValue==0) { CapsLockValue=1 // Calc.showCapsLockValue.value="当前是大写 "; } else { CapsLockValue=0 // Calc.showCapsLockValue.value="当前是小写 "; } } function setCalcborder() { CalcTable.style.border="1px solid #0090FD" } function setHead() { CalcTable.cells[0].style.backgroundColor="#7EDEFF" } function setCalcButtonBg() { for(var i=0;i<Calc.elements.length;i++) { if(Calc.elements[i].type=="button"&&Calc.elements[i].bgtype!="1") { // if(i==10) // alert(123); Calc.elements[i].style.borderTopWidth= 0 Calc.elements[i].style.borderRightWidth= 2 Calc.elements[i].style.borderBottomWidth= 2 Calc.elements[i].style.borderLeftWidth= 0 Calc.elements[i].style.borderTopStyle= "none"; Calc.elements[i].style.borderRightStyle= "solid"; Calc.elements[i].style.borderBottomStyle= "solid"; Calc.elements[i].style.borderLeftStyle= "none"; //#46AC17 Calc.elements[i].style.borderTopColor= "#118ACC"; Calc.elements[i].style.borderRightColor= "#118ACC"; Calc.elements[i].style.borderBottomColor= "#118ACC"; Calc.elements[i].style.borderLeftColor= "#118ACC"; //#CBF3B2 Calc.elements[i].style.backgroundColor="#ADDEF8"; var str1=Calc.elements[i].value; str1=str1.trim(); /* if(str1=="`") { Calc.elements[i].style.fontSize=14; } */ if(str1.length==1) { //Calc.elements[i].style.fontSize=16; //Calc.elements[i].style.fontWeight='bold'; } var thisButtonValue=Calc.elements[i].value; thisButtonValue=thisButtonValue.trim(); if(thisButtonValue.length==1) { Calc.elements[i].onclick= function () { var thisButtonValue=this.value; thisButtonValue=thisButtonValue.trim(); addValue(thisButtonValue); //alert(234) } Calc.elements[i].ondblclick= function () { var thisButtonValue=this.value; thisButtonValue=thisButtonValue.trim(); addValue(thisButtonValue); //alert(234) } } } } } function initCalc() { setCalcborder(); setHead(); setCalcButtonBg(); } String.prototype.trim = function() { // 用正则表达式将前后空格 // 用空字符串替代。 return this.replace(/(^s*)|(s*$)/g, ""); } var capsLockFlag; capsLockFlag=true; function capsLockText() { if(capsLockFlag)//改成大写 { for(var i=0;i<Calc.elements.length;i++) { var char=Calc.elements[i].value; var char=char.trim() if(Calc.elements[i].type=="button"&&char>="a"&&char<="z"&&char.length==1) { Calc.elements[i].value=" "+String.fromCharCode(char.charCodeAt(0)-32)+" " } } } else { for(var i=0;i<Calc.elements.length;i++) { var char=Calc.elements[i].value; var char=char.trim() if(Calc.elements[i].type=="button"&&char>="A"&&char<="Z"&&char.length==1) { Calc.elements[i].value=" "+String.fromCharCode(char.charCodeAt(0)+32)+" " } } } capsLockFlag=!capsLockFlag; }
以上就是小编为大家带来的js 弹出虚拟键盘修改密码的简单实例全部内容了，希望大家多多支持查字典教程网~
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