求教关于一个特效的问题

实现换颜色
<table id="tab" width=100% border="1">
<tr id="tr1" onmousedown="changecolor(this)">
<td> </td>
</tr>
<tr id="tr3"  onmousedown="changecolor(this)">
<td> </td>
</tr>
<tr id="tr4"  onmousedown="changecolor(this)">
<td> </td>
</tr>
<tr id="tr5"  onmousedown="changecolor(this)">
<td> </td>
</tr>
</table>
<script language="javascript">
var obj='';
function changecolor(trobj)
   {
    if (obj=='')
       {
        trobj.style.background="black";
       }
    else
       {        obj.style.background="white";
        trobj.style.background="black";
       }
    obj=trobj;
   }
</script>

解决方案 »

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选择特效
在没行中对应加入一个hidden  选择了本行就改变hidden的值啦
<table id="iTable" onclick="test(this)">
<tr>
<td>aaaaaaaaaaaaaaaaaa</td>
<td>bbbbbbbbbbbbbbbbbb</td>
<td>cccccccccccccccccc</td>
</tr></table>
<script>
function test(t)
{
for (var i=0; i<t.rows.length; i++)
for (var j=0; j<t.rows[i].cells.length; j++)
t.rows[i].cells[j].bgColor = t.rows[i].cells[j] == event.srcElement ? 'red' : '';
}
</script>
cybernaute(思客):
你整个程序中就没有ff0000 你怎么出来的红色？强
这样吗
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<HTML><HEAD><TITLE>fffffffffffffffff</TITLE>
<META http-equiv=Content-Type content="text/html; charset=gb2312">
<STYLE type=text/css>BODY {
COLOR: #ffffff
}
A {

}
</STYLE><SCRIPT language=JavaScript>
var iopacaty =100;
var timerid = null;
var ImgArrNew = new Array()
var ImgArrGold = new Array()
for(i=1;i<4;i++)
{
ImgArrNew[i] = new Image();
ImgArrNew[i].src = "tup/1"+ i + ".png"
ImgArrGold[i] = new Image()
ImgArrGold[i].src = "tup/21" + i + ".jif"
}function alphaImgOver(obj1,obj2,n)
{ if(dom && !ns6_7)
{
document.all(obj1).src=ImgArrGold[n].src
document.all(obj1).style.filter ="progid:DXImageTransform.Microsoft.Alpha(opacity=100)"
document.all(obj2).style.filter ="progid:DXImageTransform.Microsoft.Alpha(opacity=100)"
}
if(ns6_7) document.getElementById(obj1).style.MozOpacity="99%"
}function alphaImgOut(obj1,obj2,n)
{
for(j=1;j<4;j++)
{
if(dom && !ns6_7)
{
document.all(obj1).src = ImgArrNew[n].src
document.all("img"+j).style.filter = "progid:DXImageTransform.Microsoft.Alpha(opacity=40)"
document.all("txt"+j).style.filter = "progid:DXImageTransform.Microsoft.Alpha(opacity=40)"
}
if(ns6_7)
{
document.getElementById(obj1).src = ImgArrNew[n].src
document.getElementById("img"+j).style.MozOpacity = "50%"
document.getElementById("txt"+j).style.MozOpacity = "40%"
}
}
}
function notallAlpha()
{
for(i=1;i<4;i++)
{
if( iopacaty > 35 )
{
if(dom && !ns6_7)
{
document.all["img" + i].style.filter ="progid:DXImageTransform.Microsoft.Alpha(opacity="+iopacaty+")"
document.all["txt" + i].style.filter ="progid:DXImageTransform.Microsoft.Alpha(opacity="+iopacaty+")"
}
if(ns6_7)
{
document.getElementById("img" + i).style.MozOpacity=iopacaty+"%"
}
iopacaty -= 5;
}
}
}
function Is()
{
  var agt=navigator.userAgent.toLowerCase();
  this.major = parseInt(navigator.appVersion);
  this.minor = parseFloat(navigator.appVersion);  this.nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
              && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
              && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1));
  this.nav2 = (this.nav && (this.major == 2));
  this.nav3 = (this.nav && (this.major == 3));
  this.nav4 = (this.nav && (this.major == 4));
  this.nav4up = (this.nav && (this.major >= 4));
  this.navonly      = (this.nav && ((agt.indexOf(";nav") != -1) ||
                        (agt.indexOf("; nav") != -1)) );
  this.nav6 = (this.nav && (this.major == 5));
  this.nav6up = (this.nav && (this.major >= 5));
  this.gecko = (agt.indexOf('gecko') != -1);
  this.mozilla = (this.nav && (agt.indexOf('netscape') == -1));
  this.ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
  this.ie3    = (this.ie && (this.major < 4));
  this.ie4    = (this.ie && (this.major == 4) && (agt.indexOf("msie 4")!=-1) );
  this.ie4up  = (this.ie  && (this.major >= 4));
  this.ie5    = (this.ie && (this.major == 4) && (agt.indexOf("msie 5.0")!=-1) );
  this.ie5_5  = (this.ie && (this.major == 4) && (agt.indexOf("msie 5.5") !=-1));
  this.ie5up  = (this.ie  && !this.ie3 && !this.ie4);
  this.ie5_5up =(this.ie && !this.ie3 && !this.ie4 && !this.ie5);
  this.ie6    = (this.ie && (this.major == 4) && (agt.indexOf("msie 6.")!=-1) );
  this.ie6up  = (this.ie  && !this.ie3 && !this.ie4 && !this.ie5 && !this.ie5_5);
}
function ShowMySite()
{
window.location.href="Content.asp"
}
function hTr(o)
{
oTbl = document.getElementById("tb2")
if(oTbl == null) return
for(i=0;i<oTbl.rows.length;i++)
{
if(o!=oTbl.rows[i]) oTbl.rows[i].style.display = "none"
}
}
</SCRIPT><META content="MSHTML 5.50.4134.600" name=GENERATOR></HEAD>
<BODY  onload=countTb()>
<TABLE height="100%" cellSpacing=0 cellPadding=0 width="100%"
border=0>
  <TBODY>
  <TR>
    <TD height=2>
      <TABLE cellSpacing=0 cellPadding=0 width="100%" border=0>
        <TBODY>
        <TR>
          <TD
          style="FILTER: progid:DXImageTransform.Microsoft.Gradient(GradientType=1, StartColorStr='#5A7EDC', EndColorStr='#C7DDFF')"
          width="31%"><IMG height=2 src="" width=1></TD>
          <TD
          style="FILTER: progid:DXImageTransform.Microsoft.Gradient(GradientType=1, StartColorStr='#C7DDFF', EndColorStr='#5A7EDC')"
          width="69%"><IMG height=2 src="" width=1></TD></TR></TBODY></TABLE></TD></TR>
  <TR>
    <TD bgColor=#5a7edc height="71%">
      <TABLE height="100%" cellSpacing=0 cellPadding=0 width="100%" border=0>
        <TBODY>
        <TR>
          <TD width=1>
          <TD id=td0 width="50%">
            <TABLE id=tb2 cellSpacing=0 cellPadding=0 width="100%" border=0>
              <TBODY>
              <TR onmouseover="alphaImgOver('img1','txt1',1)" onclick=hTr(this)
              onmouseout="alphaImgOut('img1','txt1',1)">
                      <TD style="PADDING-LEFT: 23px; PADDING-BOTTOM: 20px"
                  width=79><IMG id=img1 style="moz-opacity: 99%" height=32
                  alt=http://sz.luohuedu.net/xml/ hspace=12
                  src="../tup/1.png" width=32 border=0></TD>
                <TD id=txt1 title="fggggggggg"
                vAlign=top width="100%"></TD></TR>
              <TR onmouseover="alphaImgOver('img2','txt2',2)" onclick=hTr(this)
              onmouseout="alphaImgOut('img2','txt2',2)">
                      <TD style="PADDING-LEFT: 23px; PADDING-BOTTOM: 20px"
                  width=79><IMG id=img2
                  style="FILTER: progid:DXImageTransform.Microsoft.Alpha(Opacity=100); moz-opacity: 99%"
                  height=32 alt=http://dotnet.aspx.cc/ hspace=12
                  src="../tup/1.png" width=32 border=0></TD>
                <TD id=txt2 title="fssssscc"
               </TD></TR>
              <TR onmouseover="alphaImgOver('img3','txt3',3)" onclick=hTr(this)
              onmouseout="alphaImgOut('img3','txt3',3)">
                      <TD style="PADDING-LEFT: 23px; PADDING-BOTTOM: 20px"
                  width=79><IMG id=img3
                  style="FILTER: progid:DXImageTransform.Microsoft.Alpha(Opacity=100); moz-opacity: 99%"
                  height=32 alt=http://lucky.myrice.com/ hspace=12
                  src="../tup/1.png" width=32 border=0></TD>
                <TD id=txt3 title="ccccccccccccccs"
                style="FONT-WEIGHT: bold; FONT-SIZE: 11pt; FILTER: progid:DXImageTransform.Microsoft.Alpha(Opacity=100); FONT-FAMILY: 宋体,新宋体"
                vAlign=top width="100%"><A
                  style="COLOR: #ffffff; TEXT-DECORATION: none"
                  href="http://aa.ffe.com/">DHTML
            fffffffff</A></TD></TR></TBODY></TABLE>
            <TABLE id=tb3 onmouseover=opacityNot() cellSpacing=0 cellPadding=0
            width="100%" border=0>
              <TBODY>
              <TR>
                <TD> </TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></TD></TR>

  </TBODY></TABLE>
</BODY></HTML>
＜－－－－－－－－－－－－－－高手看过来！能不能搞定这个？
http://community.csdn.net/Expert/topic/3472/3472337.xml?temp=.1701624