请帮忙：怎样用代码实现当选中或经过表格行时被选中或向下的效果（像按钮被按下的那种效果！）

Question

<script language="JavaScript1.2">function changeto(highlightcolor){
source=event.srcElement
if (source.tagName=="TR"||source.tagName=="TABLE")
return
while(source.tagName!="TD")
source=source.parentElement
if (source.style.backgroundColor!=highlightcolor&&source.id!="ignore")
source.style.backgroundColor=highlightcolor
}function changeback(originalcolor){
if (event.fromElement.contains(event.toElement)||source.contains(event.toElement)||source.id=="ignore")
return
if (event.toElement!=source)
source.style.backgroundColor=originalcolor
}
</script>

Answer 1

在<table>标签中加入 onMouseover="changeto('lightgreen')" onMouseout="changeback('white')"
changto("鼠标放上表格时的颜色") changeback("鼠标离开后的颜色")

Answer 2

onMouseover和onMouseout时调用不同的样式表，如：
<style>
.over {
FONT-SIZE: 12px; FILTER: DropShadow(Color=#FFFFFF, OffX=1, OffY=1, Positive=1); COLOR: #cccccc; LETTER-SPACING: 0.3em; TEXT-DECORATION: none
}</style><a onMouseover="this.className='over'" onMouseout="this.className=''">xxx</a>这只是举个例子，你自己写一个或找一个象一点的样式表作为over

Answer 3

.......<script language="JavaScript">
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}function MM_findObj(n, d) { //v4.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
</script>......<TD bgcolor="#ffffee" width="35"><a href="xxmainmodal.jsp" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('Image1','','../image/back1.gif',1)" target="_top"><img name="Image1" border="0" src="../image/back.gif" width="43" height="18"></a></TD>......