document.getElementById (nadal) nie działa

Zacząłem wątek tutajdocument.getElementById nie działa ale wygląda na to, że nawet sugestie były prawidłowe. Nadal mam problem.

Mam kilka pól wyboru. Kiedy zobaczę tutaj źródło strony. document.getElementById ('chk1') jest jedynym, który nie jest pusty. Jak to możliwe?

<input id="chk0" value="JobStages###StageCode~JobCode###DRAW~1005" onclick="addRemoveRow(this.value,this.checked)" style="border-width:0px;padding:1px;margin:0px;height:14px;"  type="checkbox" />

<input id="chk1" value="JobStages###StageCode~JobCode###FEAS~1005" onclick="addRemoveRow(this.value,this.checked)" style="border-width:0px;padding:1px;margin:0px;height:14px;"  type="checkbox" />

<input id="chk2" value="JobStages###StageCode~JobCode###N/C~1005" onclick="addRemoveRow(this.value,this.checked)" style="border-width:0px;padding:1px;margin:0px;height:14px;"  type="checkbox" />

EDYCJA: Prawie cały kod

<tr id='rw1' onMouseOver='setHover(this,event);' class='DRAW~1005      '
    onClick='setClick(this,event);'>
    <td id='RowId_0' width=0 style='display: none'>1</td>

    <td id='PrimaryKey_0' width=0 style='display: none'>DRAW~1005</td>
    <td id='StageCode_0' width=0 style='display: none'>DRAW</td>
    <td id='Allocated_0' nowrap
        style='overflow: hidden; height: 16px; width: 136px; overflow: hidden; text-align: center; padding-left: 5px;'
        class='col1'><input id="chk0"
        value="JobStages###StageCode~JobCode###DRAW~1005"
        onclick="addRemoveRow(this.value,this.checked)"
        style="border-width: 0px; padding: 1px; margin: 0px; height: 14px;"
        type="checkbox" /></td>
    <td id='StageCode_0' nowrap
        style='overflow: hidden; height: 16px; width: 136px; overflow: hidden; text-align: left; padding-left: 5px;'
        class='col2'></td>
    <td id='StageDescription_0' nowrap
        style='overflow: hidden; height: 16px; width: 123px; overflow: hidden; text-align: left; padding-left: 5px;'
        class='col3'
        onclick="showTextEditor(event,'JobStages','StageDescription','StageCode~JobCode','DRAW~1005      ');">
    </td>
    <td id='StartDate_0' nowrap
        style='overflow: hidden; height: 16px; width: 171px; overflow: hidden; text-align: left; padding-left: 5px;'
        class='col4'
        onclick="showCalendar(event,'JobStages','StartDate','StageCode~JobCode','DRAW~1005      ');">
    </td>
    <td id='EndDate_0' nowrap
        style='overflow: hidden; height: 16px; width: 112px; overflow: hidden; text-align: left; padding-left: 5px;'
        class='col5'
        onclick="showCalendar(event,'JobStages','EndDate','StageCode~JobCode','DRAW~1005      ');">
    </td>
</tr>

<tr id='rw2' onMouseOver='setHover(this,event);' class='FEAS~1005      '
    onClick='setClick(this,event);'>
    <td id='RowId_1' width=0 style='display: none'>2</td>

    <td id='PrimaryKey_1' width=0 style='display: none'>FEAS~1005</td>
    <td id='StageCode_1' width=0 style='display: none'>FEAS</td>
    <td id='Allocated_1' nowrap
        style='overflow: hidden; height: 16px; width: 136px; overflow: hidden; text-align: center; padding-left: 5px;'
        class='col1'><input id="chk1"
        value="JobStages###StageCode~JobCode###FEAS~1005"
        onclick="addRemoveRow(this.value,this.checked)"
        style="border-width: 0px; padding: 1px; margin: 0px; height: 14px;"
        type="checkbox" /></td>
    <td id='StageCode_1' nowrap
        style='overflow: hidden; height: 16px; width: 136px; overflow: hidden; text-align: left; padding-left: 5px;'
        class='col2'></td>
    <td id='StageDescription_1' nowrap
        style='overflow: hidden; height: 16px; width: 123px; overflow: hidden; text-align: left; padding-left: 5px;'
        class='col3'
        onclick="showTextEditor(event,'JobStages','StageDescription','StageCode~JobCode','FEAS~1005      ');">
    </td>
    <td id='StartDate_1' nowrap
        style='overflow: hidden; height: 16px; width: 171px; overflow: hidden; text-align: left; padding-left: 5px;'
        class='col4'
        onclick="showCalendar(event,'JobStages','StartDate','StageCode~JobCode','FEAS~1005      ');">
    </td>
    <td id='EndDate_1' nowrap
        style='overflow: hidden; height: 16px; width: 112px; overflow: hidden; text-align: left; padding-left: 5px;'
        class='col5'
        onclick="showCalendar(event,'JobStages','EndDate','StageCode~JobCode','FEAS~1005      ');">
    </td>
</tr>

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