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javascript,问:如何从一函数调用另一函数改变本函数form的属性
<SCRIPT LANGUAGE="JavaScript">;
<!--
function able()
{
if (form1.file.value!= ""
form1.Submit1.disabled=false;
else
form1.Submit1.disabled=true;
}
function show()
{
var sz = "<DIV ALIGN=center style='width:479px'>;"
sz += "<form action='' method='post' enctype='multipart/form-data' name='form1'>;"
+"<table width='479' border='0' cellpadding='0' cellspacing='0'>;"
+" <tr>;"
+" <td height='103' colspan='5' valign='top'>;"
+" <p>;图片来源"
+" <input name='file' type='file' onChange='able()' onKeyPress='able()' onKeyUp='able()' size='32'>;"
+" <input name='Submit1' type='submit' id='Submit1' value=' 确定' disabled >;"
+" </p>;"
+" </td>;"
+" </tr>;"
+"</table>;"
+"</form>;"
sz+="</DIV>;"
return sz
}
document.write(show());
//-->;
</SCRIPT>;
我用这种方式没有报错,加了一个show(); |
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