定义了一个marquee对象，怎样单击按钮时改变字体改色呢？

解决方案 »

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<html>
<head>
<script>
function getColor(){
var fontColors="red";
mmm.color=fontColors;
}
</script>
</head>
<body>
<tr>
  <td> <font id=mmm color="#00FF00">
    <MARQUEE DIRECTION=down>
    谢谢你
    </MARQUEE>
    </font> </td>
</tr>
<br><br>
<tr><td>
<input type=button value=变色 onclick="getColor()">
</td></tr>
</body>
</html>
//谢谢大家，可是我一移植过来，就好像不行了，在请指点，我是在"开始"按钮上增加事件getColor()的
/////////////////////////////////
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>digitalgame</title><script language="javascript">
function getColor(){
var fontColors="red";
mmm.color=fontColors;
}
</script>
</head>
<body onLoad="">
<form name="form1" method="post">
  <table width="672" border="2" cellpadding="0" cellspacing="0" bgcolor="#FFFFFF" align="center">
    
    <tr>
      <td width="451" rowspan="2" valign="top" id="forMusic">
        
        <table  border="0" width="451" height="442" cellpadding="0" cellspacing="0" bgcolor="#000000">
          
          <tr>
            <td width=0 height=0> <input type=hidden name=startTime> <input type=hidden name=endTime>
                 <input type=hidden name="fontColors" value="black">
            </td>
          </tr>
          <tr>
            <td width="451" height="442" valign="top"> 
              
    <script>
    for (var i=1;i<10;i++){
    document.write("<strong><FONT id=mmm size=5 color=yellow><MARQUEE DIRECTION=down height=250 loop=1 width=80");
    document.write("style=\"position:absolute; top:0; left:"+(i*50+10)+"\" id=\"dd"+i+"\"></MARQUEE></FONT></strong>");
    }

    function initObj(){
    //给随机的marquee对象赋值
        var level=document.form1.selLevel.value;
var idx = Math.ceil(Math.random()*9);
var obj = eval("dd"+idx);
obj.innerText=Math.ceil(47+Math.ceil(Math.random()*20000));
obj.scrollDelay = 600-80*level;
obj.scrollamount=1;
    }
     //设置时间间歇
     var interval=3000;
     setInterval("initObj()", interval);
      </script>
            </td>
          </tr>

        </table>
        
      <td width="213" height="2"></tr>
    <tr>
      <td height="476" valign="top" bgcolor="#0099ff">
        
        <table  border="0" cellpadding="0" cellspacing="0" bgcolor="#0099FF">
          
          <tr>
            <td width="28" height="28"> </td>
            <td width="108"> </td>
            <td width="4"> </td>
            <td width="5"> </td>
            <td width="9"> </td>
            <td width="36"> </td>
          </tr>
          <tr>
            <td height="28"></td>
            <td colspan="2" valign="top"> <input type="button" name="nonStart" value="开始" class="button" OnClick="getColor()">
            </td>
            <td> </td>
            <td> </td>
            <td> </td>
          </tr>
          <tr>
            <td height="21"></td>
            <td valign="top"> <input type="button" name="nonEnd" value="结束" >
            </td>
            <td> </td>
            <td></td>
            <td></td>
            <td></td>
          </tr>
          <tr>
            <td height="36"></td>
            <td valign="middle"><input name="nonExit" type="button" id="nonExit" value="退出"  onClick="javascript:self.close()">
            </td>
            <td> </td>
            <td> </td>
            <td> </td>
            <td> </td>
          </tr>
          <tr>
            <td height="27"></td>
            <td colspan="3" valign="bottom"> <select name="selLevel" style="width:100" class="select">
                <option value="1" selected>一级</option>
                <option value="2">二级</option>
                <option value="3">三级</option>
                <option value="4">四级</option>
                <option value="5">五级</option>
                <option value="6">六级</option>
              </select> </td>
            <td> </td>
            <td> </td>
          </tr>
          <tr>
            <td height="23"></td>
            <td> </td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
          </tr>
          <tr>
            <td height="16"></td>
            <td colspan="4" valign="top"> <label>你目前的得分：</label>  </td>
            <td></td>
          </tr>
          <tr>
            <td height="36"></td>
            <td colspan="4" valign="middle"> <input type="text" name="txtScore" class="text" value="0" size="15" disabled></td>
            <td></td>
          </tr>
          <tr>
            <td height="200"></td>
            <td colspan="5" valign="top"> <script language=javascript>
document.write("<label id='appreciate'></label>");
     </script> </td>
          </tr>
          <tr>
            <td height="16"></td>
            <td> </td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
          </tr>
        </table>
        
    </tr>
    <tr>
      <td height="29" colspan="2" valign="middle" bgcolor="#0099FF"> 　　　　　输入对应的数字
        <input type="text" name="txtInput" class="text" size="30" onKeyUp="updateScore()">
      </td>
    </tr>
  </table>
</form>
</body>
</html>
<script language="javascript">
function getColor(){
var fontColors="red";
for(i=1 ;i<10 ; i++){
marq_self = eval("dd" + i );
if(typeof(marq_self) == "undefined" || marq_self == ""){
return ;
}else{
marq_self.style.color=fontColors;
}
}
}
</script>
真痛苦，想把全部代码贴过来都不行，试了三次了。考
谢谢大家，谢谢xiaoshi(js真痛苦!我要被炒了) ！