js 弹出虚拟键盘修改密码的简单实例

//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) "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\" style=\"position:absolute; left:0px; top:0px; width:500px; z-index:180;display:none\"> <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=\"\" style=\"cursor: default;height:30\"> <INPUT type=hidden value=\"\" name=password> <INPUT type=hidden value=ok name=action2>&nbsp<font style=\"font-size:13px;\">-+-www.soojs.com㊣后台管理帐号密码输入器-+-</font>&nbsp;&nbsp&nbsp;&nbsp;&nbsp&nbsp;&nbsp;&nbsp&nbsp;&nbsp;&nbsp&nbsp;&nbsp&nbsp;<INPUT style=\"width:100px;height:20px;background-color:#54BAF1;\" type=button value=\"使用键盘输入\" bgtype=\"1\" onclick=\"password1.readOnly=0;password1.focus();softkeyboard.style.display='none';password1.value='';\"><span style=\"width:2px;\"></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();\" style=\"width:100px;height:42px\"> \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\" style=\"width:100px;\"></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=\" &quot; \"></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 \" style=\"width:130px;height:42\"></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=\" &lt; \"></td>\n      <td> <input type=button value=\" &gt; \"></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;
}