<span id=s1>
  <input type="text" name="b" value="fadsfd">
</span>
<span id=s2>
  <input type="text" name="a" value="bbbb">
</span>
<input type="button" onclick="document.all.s1.innerHTML=document.all.s2.innerHTML;">

解决方案 »

  1.   

    你这个不行吧
    我不是要复制文本框内的内容,我就按button时,把指定区域内的内容(是指,文本框,选择框,单选项等这些东西)再增加
      

  2.   

    我要按一button "add",增加与下面貌一相同的一行
               <TABLE cellSpacing=0 cellPadding=0 width="100%" bgColor=#f0f0f0 
                border=0 id="table1">
                  <TBODY>
                  <TR>
                    <TD class=textogeneral><B>&nbsp;Job 1</B></TD>
                    <TD class=textogeneral vAlign=top align=right> </TD></TR>
                  <TR>
                    <TD colSpan=2>
                      <TABLE cellSpacing=0 cellPadding=0 width="100%" border=0 id="table2">
                        <TBODY>
                        <TR>
                          <TD rowSpan=2>
                            <TABLE cellSpacing=0 cellPadding=0 width="100%" 
                            bgColor=#f0f0f0 border=0 id="table3">
                              <TBODY>
                              <TR align=middle>
                                <TD class=textogeneral colSpan=2>Duration</TD></TR>
                              <TR align=middle bgColor=#f0f0f0>
                                <TD class=textogeneral>Years</TD>
                                <TD class=textogeneral>Months</TD></TR>
                              <TR align=middle bgColor=#f0f0f0>
                                <TD><INPUT class=textboxes 
                                  onblur="validateInteger(this,this.value); monthsToYears(this,1); validateWorkYears(this,this.value)" 
                                  style="WIDTH: 25px" maxLength=2 size=1 
                                  name=sc_job_y> </TD>
                                <TD><SELECT onchange=monthsToYears(this,2) 
                                  name=sc_job_m></SELECT> </TD></TR></TBODY></TABLE></TD>
                          <TD rowSpan=2>&nbsp; </TD>
                          <TD class=textogeneral align=middle>Company name</TD>
                          <TD class=textogeneral align=middle>Country</TD>
                          <TD class=textogeneral align=middle>Position</TD>
                          <TD class=textogeneral align=middle>Dedication</TD></TR>
                        <TR>
                          <TD align=middle><INPUT class=textboxes 
                            style="WIDTH: 120px" maxLength=100 size=8 
                            name=sc_job_company> </TD>
                          <TD align=middle><INPUT class=textboxes 
                            style="WIDTH: 120px" maxLength=50 size=8 
                            name=sc_job_country> </TD>
                          <TD align=middle><INPUT class=textboxes 
                            style="WIDTH: 120px" maxLength=50 size=8 
                            name=sc_job_charge> </TD>
                          <TD align=middle><SELECT name=sc_job_dtime> <OPTION 
                              value="" selected>-</OPTION> <OPTION value=1>Full 
                              time</OPTION> <OPTION value=2>Part 
                            time</OPTION></SELECT> 
                </TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>
                <DIV id=pdqwork 
                style="DISPLAY: none; VISIBILITY: hidden; POSITION: relative">
                <TABLE cellSpacing=0 cellPadding=2 width="100%" bgColor=#f0f0f0 
                border=0 id="table4">
                  <TBODY>
                  <TR>
                    <TD class=textogeneral>Do your duties in this job correspond 
                      with the profession in demand you have selected?</TD>
                    <TD align=right>
                      <TABLE cellSpacing=0 cellPadding=0 border=0 id="table5">
                        <TBODY>
                        <TR>
                          <TD class=textogeneral>Yes</TD>
                          <TD class=textogeneral width=25>
    <INPUT 
                            onfocus=radioChange(this) type=radio value=V1 
                            name=sc_job_pdq2 checked> </TD>
                          <TD class=textogeneral>No</TD>
                          <TD class=textogeneral>
    <INPUT onfocus=radioChange(this) 
                            type=radio value=V1 name=sc_job_pdq1 checked> 
                </TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></DIV>
                <TABLE cellSpacing=0 cellPadding=2 width="100%" bgColor=#f0f0f0 
                border=0 id="table6">
                  <TBODY>
                  <TR>
                    <TD class=textogeneral>Enter the year until you worked in this 
                      job<SPAN class=verysmall> (Running year if the job is 
                      current)</SPAN></TD>
                    <TD align=middle><INPUT class=textboxes 
                      onblur=validateYear(this,true,this.value,true,false,this.form) 
                      style="WIDTH: 37px" onfocus=focusYear(this) maxLength=4 size=4 
                      value=year name=sc_job_upto_year> </TD></TR></TBODY></TABLE>
                <TABLE cellSpacing=0 cellPadding=2 width="100%" bgColor=#f0f0f0 
                border=0 id="table7">
                  <TBODY>
                  <TR>
                    <TD class=textogeneral width="87%">Select the knowledge 
                      required to perform the duties of this job</TD>
                    <TD align=middle width="13%"><INPUT class=jtbutton onclick=openJobSkills(1) type=button value=Select name=jobskill_btn> </TD></TR></TBODY></TABLE>如何写啊?
      

  3.   

     <input type=button value=insert onclick="insertSame()" >
    <table id=table1><tr><td>
    <input type=text value="shyslysky">hi
    <input type=button value="shyslysky" >
    </td></tr></table><script>
    function insertSame(){
      var obj=document.getElementById("table1")
      obj.insertAdjacentHTML("afterEnd",obj.innerHTML)
    }
    </script>
      

  4.   

    function AddNewItem()
    {
    var InsertIndex = WorkL.rows.length;
    var NewRow = WorkL.insertRow(InsertIndex);
    var NewCell1 = NewRow.insertCell();
    var NewCell2 = NewRow.insertCell();
     
        var item = InsertIndex+1;
        NewCell1.bgColor = "#E7EFFF"
    NewCell1.innerHTML = "<p align='center'>第" + item + "步:";
    NewCell2.innerHTML = "&nbsp;<input type='text' name='txtCusName"+item+"' size='15' maxlength='15' class='Input' readonly><input type='hidden' name='txtCusId"+item+"'>&nbsp;<A onclick=OpenWindow3('txtCusName"+item+"','txtCusId"+item+"') href='#'><IMG title='选择作者' src='../images/USER.gif' border='0' width='15' height='15'></A>";
    }
      

  5.   

    看看里面的 function AddRow() //增加一行的写法http://community.csdn.net/Expert/topic/3548/3548206.xml?temp=.5545618
      

  6.   

    <html><head>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
    <title>JK:支持民族工业,尽量少买X货</title><style>
    TD,INPUT{ font-size:12; }
    </style>
    </head><body bgcolor=EEEEEE>
    <form name="frm" action="about:结果页面" method=post >
    <table align="center" bordercolor=cccccc border=1  width=100% >
    <tr>
    <td width=500>
    </td>
    <td align=right>
          <input type="button"  value="增加" class="bottom" onclick="addDetailProcess();">&nbsp;      
          
    </td>
    </tr>
    </table>
    <div width=100% id=thedetailtableDIV>
    <table align="center" bordercolor=cccccc border=1 width=100% >
    <tbody id="tbDetailPrepare">
    <tr>
    <td ><input type="checkbox" name="record_select" ></td>
    <td ><input type="text" name="detail_id" value='每次复制这一行' ></td>
    <td ><input type="text" name="detail_name" value='也可以把这个tboday移到form外,并且隐藏' ></td>
    </tr>
    </tbody>
      <tr bgcolor=eeeeee id="trDetailTitles"> 
        <td >&nbsp;</td>
        <td >明细ID*</td>
        <td >明细NAME</td>
      </tr>
      <tbody id="tbDetailUsed" >
    <tr>
    <td ><input type="checkbox" name="record_select" ></td>
    <td ><input type="text" name="detail_id" value='' ></td>
    <td ><input type="text" name="detail_name" value='' ></td>
    </tr> <tr height=0 ><td colspan=100 height=0 > 合计</td></tr>
      </tbody> </table>
    </div>
    </form><input name="theHistoryRecord" type=hidden value="">
    </body></html><script language=javascript>


    function addDetailProcess(afterRowIndex) //增加明细
    {
    var alltbDetailUsed= document.all("tbDetailUsed").rows;
    var theFirstSelectedDetail;
    if (afterRowIndex==null)
    {
    theFirstSelectedDetail=alltbDetailUsed.length-2;
    }
    else theFirstSelectedDetail=afterRowIndex;
    var newRow = document.all("tbDetailPrepare").rows[0].cloneNode(true);
    var desRow = alltbDetailUsed[theFirstSelectedDetail+1];
    desRow.parentElement.insertBefore(newRow,desRow ); }</script>
      

  7.   

    直接把要复制的块用一个标签(如<div id="cloneTag"></div>)圈起来然后再用cloneNode方法复制
      

  8.   

    cloneNode具体如何用啊?楼上能给段具体的源码吗?我不会:(