Javascript实现计算个人所得税_javascript技巧

TABLE {
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CSS：

BORDER-BOTTOM: medium none
}
TD {
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IMG {
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}
FORM {
    BORDER-RIGHT: medium none; PADDING-RIGHT: 0px; BORDER-TOP: medium none; PADDING-LEFT: 0px; PADDING-BOTTOM: 0px; MARGIN: 0px; BORDER-LEFT: medium none; PADDING-TOP: 0px;BORDER-BOTTOM: medium none
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TD {
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P {
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LI {
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SELECT {
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INPUT {
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TEXTAREA {
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SELECT {
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INPUT {
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TEXTAREA {
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A:hover {
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HTML:

</STYLE>
 
<SCRIPT language=javascript>
   <!--
function warnInvalid (theField, s)
  {  newAlert(s);
    theField.focus();
    theField.select();
    return false;
  }
 
function isNumber(s)  //字符串是否由数字构成
  {
    var digits = "0123456789";
    var i = 0;
    var sLength = s.length;
 
    while ((i < sLength))
    {
      var c = s.charAt(i);
      if (digits.indexOf(c) == -1) return
 
false;
      i++;
    }
     
    return true;
  }
 
function CheckNumeric(theField,s) //整数或小数
  {
    var ret = true;
    var i;
    var str=theField.value;
    var Temp = new Number(str);
     
    if (str.length == 0)
    {
      return warnInvalid (theField, s);
      ret=false;
    }
     
    if (ret)
    {
      if (Temp.valueOf() != Temp.valueOf
 
())
      {
        return warnInvalid
 
(theField, s);
      }
    }
     
    return ret;
  }
function validateFormInfo(form)
  {
    var str
    var SumTo
    var srSum
    var qzSum,InsuSum,TSum,yzSum,fySum
     
    s=document.form1.select.selectedIndex+1;
    srSum=document.form1.textfield.value;
    if (s.length<1)
    {
     s=1;
    }
    qzSum=document.form1.textfield3.value;
    InsuSum=document.form1.textfield2.value;
    yzSum=document.form1.textfield22.value;
    fySum=document.form1.textfield32.value;
    TSum=srSum-qzSum-InsuSum;
    /*newAlert_Top("sr="+srSum+"qz="+qzSum+"INsu="+InsuSum+"yz="+yzSum+"fy="+
 
fySum);*/
     
    if (form == null) return true;
 
    str = "请正确输入收入金额！";
    if (!CheckNumeric(form.elements
 
["textfield"],str)) return false; //收入金额
     
    if (document.all.select.selectedIndex==0)
    {
     str = "请正确输入社会保险费！";
     if (!CheckNumeric(form.elements
 
["textfield2"],str)) return false; //各项社会保险费
             
       str = "请正确输入起征额！";
     if (!CheckNumeric(form.elements
 
["textfield3"],str)) return false; //起征额
    }
     
    if (document.all.select.selectedIndex==8)
    {
     str = "请正确输入财产原值！";
     if (!CheckNumeric(form.elements
 
["textfield22"],str)) return false; //各项社会保险费
         
     str = "请正确输入合理交易费用！";
     if (!CheckNumeric(form.elements
 
["textfield32"],str)) return false; //起征额
    }
     
    switch (s)
    {
      case 1:
         
 
document.form1.textfield4.value=Rate1(TSum);
        break;           
 
       
      case 2:
         
 
document.form1.textfield4.value=Rate2(srSum);
        break;
         
      case 3:
         
 
document.form1.textfield4.value=Rate2(srSum);
        break;
       
      case 4:
         
 
document.form1.textfield4.value=Rate3(srSum);
        break;
       
      case 5:
         
 
document.form1.textfield4.value=R4568(srSum)*70/100;
        break;
         
      case 6:
         
 
document.form1.textfield4.value=R4568(srSum);
        break;
         
      case 7:
         
 
document.form1.textfield4.value=srSum*20/100;
        break;
         
      case 8:
         
 
document.form1.textfield4.value=R4568(srSum);
        break;
         
      case 9:
        if (srSum-yzSum-fySum<0)
        {
         newAlert_Top("都亏了！不用交税了！");
          
 
document.form1.textfield4.value=0;
        }
        if (srSum-yzSum-fySum>0)
        {
        document.form1.textfield4.value=
 
(srSum-yzSum-fySum)*20/100;
        }
        break;
         
      case 10:
         
 
document.form1.textfield4.value=srSum*20/100;
        break;
       
      case 11:
         
 
document.form1.textfield4.value=srSum*20/100;
        break;
       
    }
             
  }
//--------------------------------以下是算法--------------
 
//---------------------------------------
function Rate1(XSum)//工资薪金
  {
  var Rate;
  var Balan;
  var TSum;
  if (XSum<=500)
   {Rate=5;
   Balan=0;
   }
  if ((500<XSum) && (XSum<=2000))
   {Rate=10;
   Balan=25;
   }
  if ((2000<XSum) && (XSum<=5000))
   {Rate=15;
   Balan=125;
   }
  if ((5000<XSum) && (XSum<=20000))
   {Rate=20;
   Balan=375;
   }
  if ((20000<XSum) && (XSum<=40000))
   {Rate=25;
   Balan=1375;
   }
  if ((40000<XSum) && (XSum<=60000))
   {Rate=30;
   Balan=3375;
   }
  if ((60000<XSum) && (XSum<=80000))
   {Rate=35;
   Balan=6375;
   }
  if ((80000<XSum) && (XSum<=100000))
   {Rate=40;
   Balan=10375;
   }
  if (XSum>100000)
   {Rate=45;
   Balan=15375;
   }
   TSum=(XSum*Rate)/100-Balan
   if (TSum<0)
   {
    TSum=0
   }
   return TSum
  }
   
function Rate2(XSum)
  {
  var Rate;
  var Balan;
  var TSum;
  if (XSum<=5000)
   {Rate=5;
   Balan=0;
   }
  if ((5000<XSum) && (XSum<=10000))
   {Rate=10;
   Balan=250;
   }
  if ((10000<XSum) && (XSum<=30000))
   {Rate=20;
   Balan=1250;
   }
  if ((30000<XSum) && (XSum<=50000))
   {Rate=30;
   Balan=4250;
   }
  if (50000<XSum)
   {Rate=35;
   Balan=6750;
   }
   TSum=(XSum*Rate)/100-Balan;
   if (TSum<0)
   {
    TSum=0
   }
   return TSum
  }
   
function R4568(XSum)
 {
 var TSum
  if (XSum<=4000)
  {
  TSum=(XSum-2000)*20/100;
  }
  if (XSum>4000)
  {
  TSum=(XSum-(XSum*20/100))*20/100
  }
  if (TSum<0)
  {
    TSum=0
  }
  return TSum
 }
 function gong()
 {
 var qznum
 var ff
 qznum=document.form1.textfield3.value;
 ff=document.all.checkbox.checked;
 if (ff)
 {
 document.form1.textfield3.value=4000;
 }
 if (!ff)
 {
 document.form1.textfield3.value=2000;
 }
 }
 
function Rate3(XSum)/*劳务报酬*/
{
 var TSum
 var Rate
 var Balan
 if (XSum<=20000)
 {
  Rate=20;
  Balan=0;
 }
 if ((XSum>20000) && (XSum<=50000))
 {
  Rate=30;
  Balan=2000;
 }
 if (XSum>50000)
 {
  Rate=40;
  Balan=7000;
 }
 if (XSum<=4000)
 {
  XSum=XSum-800;
 }
 if (XSum>4000)
 {
  XSum=XSum-(XSum*20/100);
 }
  
 TSum=XSum*Rate/100-Balan;
  
 if (TSum<0)
 {
  TSum=0
 }
 return TSum
}
 
  
function CHan()
{
 if (document.form1.select.selectedIndex==0)
 {
  document.all.gongzi.style.display="block";
  document.all.fei.style.display="block";
 }
 if (document.form1.select.selectedIndex!=0)
 {
  document.all.gongzi.style.display="none";
  document.all.fei.style.display="none";
 }
 if (document.form1.select.selectedIndex+1!=9)
 {
  document.all.fei1.style.display="none";
 }
 if (document.form1.select.selectedIndex+1==9)
 {
  document.all.fei1.style.display="block";
 }
  
}
  
//-->
   </SCRIPT>
 
<script type="text/javascript">
var item=new Array(
 
 
  new Array('银行类工具（存款）',//<-- 大类名，下面几行则为此类下的所有计算器
    new Array(
      new Array('通知存款计算器','http://finance.sina.com.cn/283/2005/0704/2.html'),//<-- 此2项分别为“计算器名”,“链接”
      new Array('整存零取计算器','http://finance.sina.com.cn/283/2005/0711/24.html'),
      new Array('最佳存款组合','http://finance.sina.com.cn/283/2005/0711/30.html'),
      new Array('整(零)存整取计算器','http://finance.sina.com.cn/283/2005/0711/29.html'),
      new Array('活期储蓄计算器','http://finance.sina.com.cn/283/2005/0711/28.html')
       //<-- 依次向下罗列，最后一行“)”后没有“,”
    )
  ), //<-- 非结尾大类后有“,”
 
  new Array('银行类工具（贷款）',//<-- 另一个大类
    new Array(
      new Array('等额本息还款计算器','http://finance.sina.com.cn/283/2005/0704/3.html'),
      new Array('等额本金还款计算器','http://finance.sina.com.cn/283/2005/0704/1.html'),
      new Array('提前还贷计算器','http://finance.sina.com.cn/283/2005/0708/18.html'),
      new Array('公积金贷款额度年限计算器','http://finance.sina.com.cn/283/2005/0704/6.html')//<-- 最后一行“)”后没有“,”
    )
  ), //<-- 非结尾大类后有“,”
 
  new Array('保险类工具',//<-- 另一个大类
    new Array(
      new Array('基本养老保险计算器','http://finance.sina.com.cn/283/2005/0704/10.html'),
      new Array('基本医疗保险计算器','http://finance.sina.com.cn/283/2005/0708/11.html'),
      new Array('工伤保险计算器','http://finance.sina.com.cn/283/2005/0704/5.html'),
      new Array('失业保险','http://finance.sina.com.cn/283/2005/0708/16.html'),
      new Array('住房公积金计算器','http://finance.sina.com.cn/283/2005/0711/23.html'),
      new Array('退休时每月领取的养老保险金估算计算器','http://finance.sina.com.cn/283/2005/0708/20.html')
    )
  ),
 
  new Array('股票类工具',//<-- 另一个大类
    new Array(
      new Array('股票收益计算器 ','http://finance.sina.com.cn/283/2005/0704/8.html')
       
    )
  ),
 
  new Array('基金类工具',//<-- 另一个大类
    new Array(
      new Array('基金买卖计算器','http://finance.sina.com.cn/283/2005/0708/12.html')
    )
  ),
 
  new Array('期货类工具',//<-- 另一个大类
    new Array(
      new Array('期货理财计算器 ','http://finance.sina.com.cn/283/2005/0708/14.html')
    )
  ),
 
  new Array('债券类工具',//<-- 另一个大类
    new Array(
      new Array('债券收益率计算器','http://finance.sina.com.cn/283/2005/0711/25.html')
    )
  ),
 
  new Array('外汇',//<-- 另一个大类
    new Array(
      new Array('外汇储蓄计算器','http://finance.sina.com.cn/283/2005/0711/27.html'),
      new Array('外汇兑换计算器','http://finance.sina.com.cn/283/2005/0711/26.html')
    )
  ),
 
  new Array('税务类',//<-- 另一个大类
    new Array(
      new Array('买房税费计算器','http://finance.sina.com.cn/283/2005/0708/17.html'),
      new Array('个人所得税计算器','http://finance.sina.com.cn/283/2005/0704/4.html')
       
    )
  ),
 
  new Array('理财规划类',//<-- 另一个大类
    new Array(
      new Array('理财规划计算器','http://finance.sina.com.cn/283/2005/0708/13.html'),
      new Array('子女教育基金计算器','http://finance.sina.com.cn/283/2005/0711/21.html'),
      new Array('投资收益计算器','http://finance.sina.com.cn/283/2005/0708/19.html'),
      new Array('资产净值计算器','http://finance.sina.com.cn/283/2005/0711/22.html'),
      new Array('黄金理财计算器','http://finance.sina.com.cn/283/2005/0704/9.html')
    )
  ),
  new Array('买车计算',//<-- 另一个大类
    new Array(
      new Array('购车综合计算器','http://finance.sina.com.cn/283/2005/0708/15.html')
    )
  ),
 
  new Array('购房计算',//<-- 另一个大类
    new Array(
      new Array('购房能力评估计算器','http://finance.sina.com.cn/283/2005/0704/7.html'),
      new Array('提前还贷计算器','http://finance.sina.com.cn/283/2005/0708/18.html'),
      new Array('税费计算器','http://finance.sina.com.cn/283/2005/0708/17.html'),
      new Array('公基金贷款额度年限计算器','http://finance.sina.com.cn/283/2005/0704/6.html'),
      new Array('等额本金还款法计算器','http://finance.sina.com.cn/283/2005/0704/1.html'),
      new Array('等额本息还款法计算器','http://finance.sina.com.cn/283/2005/0704/3.html')
     
    )
  )
 
 
);
 
//--------------
 
var img0 =new Image();
img0.src="http://image2.sina.com.cn/cj/toolsjs/cj_jsq_lj_010.gif";
var img1 =new Image();
img1.src="http://image2.sina.com.cn/cj/tools4.gif";
 
function ShowItem (itemId)
{
  for (var i = 0; i < item.length; i++)
   
  {
    eval('document.images["tImg' +i+ '"].src ="http://image2.sina.com.cn/cj/toolsjs/cj_jsq_lj_010.gif"');
    eval('document.all.item' + i +'.style.display = "none"');
    eval('document.all.menu' + i +'.style.background= "#1e86b0"');
    eval('document.all.menu' + i +'.style.color= "#ffffff"');
     
  }
  eval('document.images["tImg' +itemId + '"].src ="http://image2.sina.com.cn/cj/toolsjs/cj_jsq_lj_011.gif"');
  eval('document.all.item' + itemId +'.style.display = "block"');
  eval('document.all.menu' + itemId +'.style.background= "#0268CE"');
  eval('document.all.menu' +itemId+'.style.color= "#ffffff"');
}
 
</script>
 
<META content="MSHTML 6.00.6000.16640" name=GENERATOR></HEAD>
<BODY bgColor=#ffffff topMargin=5 marginheight="5">
<CENTER>
<TABLE cellSpacing=0 width=500>
 <FORM name=form1>
 <TBODY>
 <TR>
  <TD height=1></TD></TR>
 <TR>
  <TD>
   <TABLE style="MARGIN-LEFT: 48px" cellSpacing=0 width=476 align=center>
    <TBODY>
    <TR>
     <TD class=cBlue style="padding-: 7px" vAlign=bottom align=middle
     height=39><FONT color=#ff00ff size=4> 个人所得税计算公式
      </FONT></TD></TR>
    <TR>
     <TD background="/OA/images/cj_jsq_lj_006.gif"
    height=1></TD></TR></TBODY></TABLE>
   <TABLE class=cBlue style="MARGIN: 18px 0px 10px 38px" cellSpacing=0>
    <TBODY>
    <TR>
     <TD style="padding-: 2px">收入类型：</TD>
     <TD><SELECT id=select onchange=CHan() name=select> <OPTION value=1
       selected>工资、薪金所得<OPTION value=2>个体工商户生产、经营所得<OPTION
       value=3>对企事业单位的承包经营、承 租经营所得<OPTION value=4>劳务报酬所得<OPTION
       value=5>稿酬所得<OPTION value=6>特许权使用所得<OPTION
       value=7>利息、股息、红利所得<OPTION value=8>财产租赁所得<OPTION
       value=9>财产转让所得<OPTION value=10>偶然所得（如：中奖、中彩）<OPTION
       value=11>被确定征税的其他部分</OPTION></SELECT></TD></TR>
    <TR>
     <TD height=5></TD></TR>
    <TR>
     <TD></TD>
     <TD>
      <TABLE id=gongzi style="DISPLAY: block" cellSpacing=0
       width="100%"><TBODY>
       <TR>
        <TD><!--<INPUT name=checkbox
 
onclick=gong() type=checkbox value=checkbox>外籍人员及境外
 
工作的中国公民--></TD></TR></TBODY></TABLE></TD></TR>
    <TR>
     <TD height=10></TD></TR>
    <TR>
     <TD class=cBlue style="PADDING-TOP: 2px" width=60>收入金额：</TD>
     <TD><INPUT id=textfield name=textfield> 元 </TD></TR>
    <TR>
     <TD height=12></TD></TR>
    <TR>
     <TD colSpan=2>
      <TABLE class=cblue id=fei style="DISPLAY: block" cellSpacing=0
      cellPadding=0 width="100%" border=0>
       <TBODY>
       <TR>
        <TD>各项社会保险费： <INPUT id=textfield2 value=0 name=textfield2>
        <BR></TD></TR>
       <TR>
        <TD height=12></TD></TR>
       <TR>
        <TD>起　　征　　额： <INPUT id=textfield3 value=2000
        name=textfield3></TD></TR>
       <TR>
        <TD><br />注：根据税收规定，个人所得
     税的起征点为2000元，2008年3月1日起施行。</TD></TR></TBODY></TABLE></TD></TR>
    <TR>
     <TD colSpan=2>
      <TABLE class=cblue id=fei1 style="DISPLAY: none; MARGIN-LEFT: 43px"
      cellSpacing=0 cellPadding=0 width="100%" border=0>
       <TBODY>
       <TR>
        <TD align=right width=100>财产原值：</TD>
        <TD><INPUT id=textfield22 value=0 name=textfield22></TD></TR>
       <TR>
        <TD height=5></TD></TR>
       <TR>
        <TD align=right width=100>合理交易费用：</TD>
        <TD><INPUT id=textfield33 value=0
       name=textfield32></TD></TR></TBODY></TABLE></TD></TR>
    <TR>
     <TD height=10></TD></TR>
    <TR>
     <TD></TD>
     <TD><INPUT style="BORDER-RIGHT: 0px; BORDER-TOP: 0px; BACKGROUND-IMAGE: url(http://image2.sina.com.cn/cj/toolsjs/cj_jsq_lj_015.gif); BORDER-LEFT: 0px; WIDTH: 47px;CURSOR: pointer; BORDER-BOTTOM: 0px; HEIGHT: 19px" onclick=validateFormInfo(this.form,1) type=button name=button>
         </TD></TR></TBODY></TABLE></TD></TR>
 <TR>
   <TD height=1></TD></TR>
 <TR>
   <TD>
     <TABLE style="MARGIN-LEFT: 48px" cellSpacing=0 width=476>
       <TBODY>
       <TR>
         <TD class=cBlue style="padding-: 7px" vAlign=bottom
           height=39>计算结果 </TD></TR>
       <TR>
         <TD background="/OA/images/cj_jsq_lj_006.gif"
       height=1></TD></TR></TBODY></TABLE>
     <TABLE class=cBlue style="MARGIN: 18px 0px 27px 13px" cellSpacing=0>
       <TBODY>
       <TR>
         <TD class=cBlue style="PADDING-TOP: 2px" align=right
           width=170>您应交纳的个人所得税 为：</TD>
         <TD><INPUT id=textfield4 name=textfield4> 元
 。</TD></TR></TBODY></TABLE></TD></TR></TBODY></FORM></TABLE></CENTER></BODY></HTML>

以上所述就是本文的全部内容了，希望大家能够喜欢。