下面是我用来getElementById的java脚本。但这是行不通的。
<script type="text/javascript">
function invoke(but)
{
if(but==5)
{
alert(document.firstChild);
}
else if(but==6)
{
window.location.href="index1.jsp";
}
}
function UnBloc1()
{
document.getElementById("temp2").style.display="block";
document.getElementById("temp4").style.display="block";
}
</script>
适用的jsp如下
<%
try{
int i=0;
int temp=0, temp1=0,temp2=0, temp3=0, temp4=0;
for(i=0;i<14;i++)
{
temp=temp+1;
temp1=temp1+1;
temp2=temp2+1;
temp3=temp3+1;
temp4=temp4+1;
i++;
%>
<tr><form name="abc" method="post" action="">
<td><input type="text" value="<%=i%>" name="id1" id="id1"></td>
<td><center><input type="text" value="a" readonly="readonly" id="abc<%=i%>" name="abc<%=i%>" size="100"></center></td>
<td><input type="Submit" value="Resume" name="temp1<%=i%>" id="temp1<%=i%>" onClick="invoke(5)"></td>
<td><input type="button" value="Update Answer" onClick="UnBloc1()"></td>
<td><input type="text" name="temp3<%=i%>" id="temp3<%=i%>" style="border:hidden; display: none"/></td>
<td><input type="Submit" value="Submit Answer" name="temp4<%=i%>" id="temp4<%=i%>" style="display: none" onClick="invoke(6)"/>
</td>
</form></tr>
<% }
}
catch(Exception e)
{
out.println(e);
}
%>
生成的源代码如下。在这里，我想知道如何在 getElmentById 中为 javascript 中的 UnBloc() 方法的按钮获取动态按钮值。
<html>
<head><script type="text/javascript">
function invoke(but)
{
if(but==5)
{
alert("hi");
}
else if(but==6)
{
window.location.href="index1.jsp";
}
}
function UnBloc1()
{
document.getElementById("temp2").style.display="block";
document.getElementById("temp4").style.display="block";
}
</script> </head>
<tr><form name="abc" method="post" action="">
<td><input type="text" value="1" name="id1" id="id1"></td>
<td><center><input type="text" value="a" readonly="readonly" id="abc1" name="abc1" size="100"></center></td>
<td><input type="Submit" value="Resume" name="temp11" id="temp11" onClick="invoke(5)"></td>
<td><input type="button" value="Update Answer" onClick="UnBloc1()"></td>
<td><input type="text" name="temp31" id="temp31" style="border:hidden; display: none"/></td>
<td><input type="Submit" value="Submit Answer" name="temp41" id="temp41" style="display: none" onClick="invoke(6)"/>
</td>
</form></tr>
<tr><form name="abc" method="post" action="">
<td><input type="text" value="3" name="id1" id="id1"></td>
<td><center><input type="text" value="a" readonly="readonly" id="abc3" name="abc3" size="100"></center></td>
<td><input type="Submit" value="Resume" name="temp13" id="temp13" onClick="invoke(5)"></td>
<td><input type="button" value="Update Answer" onClick="UnBloc1()"></td>
<td><input type="text" name="temp33" id="temp33" style="border:hidden; display: none"/></td>
<td><input type="Submit" value="Submit Answer" name="temp43" id="temp43" style="display: none" onClick="invoke(6)"/>
</td>
</form></tr>
<tr><form name="abc" method="post" action="">
<td><input type="text" value="5" name="id1" id="id1"></td>
<td><center><input type="text" value="a" readonly="readonly" id="abc5" name="abc5" size="100"></center></td>
<td><input type="Submit" value="Resume" name="temp15" id="temp15" onClick="invoke(5)"></td>
<td><input type="button" value="Update Answer" onClick="UnBloc1()"></td>
<td><input type="text" name="temp35" id="temp35" style="border:hidden; display: none"/></td>
<td><input type="Submit" value="Submit Answer" name="temp45" id="temp45" style="display: none" onClick="invoke(6)"/>
</td>
</form></tr>
<tr><form name="abc" method="post" action="">
<td><input type="text" value="7" name="id1" id="id1"></td>
<td><center><input type="text" value="a" readonly="readonly" id="abc7" name="abc7" size="100"></center></td>
<td><input type="Submit" value="Resume" name="temp17" id="temp17" onClick="invoke(5)"></td>
<td><input type="button" value="Update Answer" onClick="UnBloc1()"></td>
<td><input type="text" name="temp37" id="temp37" style="border:hidden; display: none"/></td>
<td><input type="Submit" value="Submit Answer" name="temp47" id="temp47" style="display: none" onClick="invoke(6)"/>
</td>
</form></tr>
<tr><form name="abc" method="post" action="">
<td><input type="text" value="9" name="id1" id="id1"></td>
<td><center><input type="text" value="a" readonly="readonly" id="abc9" name="abc9" size="100"></center></td>
<td><input type="Submit" value="Resume" name="temp19" id="temp19" onClick="invoke(5)"></td>
<td><input type="button" value="Update Answer" onClick="UnBloc1()"></td>
<td><input type="text" name="temp39" id="temp39" style="border:hidden; display: none"/></td>
<td><input type="Submit" value="Submit Answer" name="temp49" id="temp49" style="display: none" onClick="invoke(6)"/>
</td>
</form></tr>
<tr><form name="abc" method="post" action="">
<td><input type="text" value="11" name="id1" id="id1"></td>
<td><center><input type="text" value="a" readonly="readonly" id="abc11" name="abc11" size="100"></center></td>
<td><input type="Submit" value="Resume" name="temp111" id="temp111" onClick="invoke(5)"></td>
<td><input type="button" value="Update Answer" onClick="UnBloc1()"></td>
<td><input type="text" name="temp311" id="temp311" style="border:hidden; display: none"/></td>
<td><input type="Submit" value="Submit Answer" name="temp411" id="temp411" style="display: none" onClick="invoke(6)"/>
</td>
</form></tr>
<tr><form name="abc" method="post" action="">
<td><input type="text" value="13" name="id1" id="id1"></td>
<td><center><input type="text" value="a" readonly="readonly" id="abc13" name="abc13" size="100"></center></td>
<td><input type="Submit" value="Resume" name="temp113" id="temp113" onClick="invoke(5)"></td>
<td><input type="button" value="Update Answer" onClick="UnBloc1()"></td>
<td><input type="text" name="temp313" id="temp313" style="border:hidden; display: none"/></td>
<td><input type="Submit" value="Submit Answer" name="temp413" id="temp413" style="display: none" onClick="invoke(6)"/>
</td>
</form></tr>
</table></body></html>
谢谢