var table=document.getElementById("#tableid"); var tds = table.getElementsByTagName("td"); for(var i=0;i<tds.length;i++){ var td=tds[i]; td.style.backgroundImage=""; }
<script language="javascript"> 把指定ID号的表格的所有 td 对象的背景图清空 function chanTB(objID) { var o=document.getElementById(objID); var tds = table.getElementsByTagName("td"); for(var i=0;i<o.rows.length-1;i++) { for(var j=0;j<o.rows[i].cells.length-1;j++) { o.rows[i].cells[j].backgroundImage=""; //o.rows[i].cells[j].style.backgroundImage=""; //或者 } } } </script>
var table=document.getElementById("#tableid"); var tds = table.getElementsByTagName("td"); for(var i=0;i <tds.length;i++){ var td=tds[i]; td.style.backgroundImage=""; }
var tds = table.getElementsByTagName("td");
for(var i=0;i<tds.length;i++){
var td=tds[i];
td.style.backgroundImage="";
}
把指定ID号的表格的所有 td 对象的背景图清空
function chanTB(objID)
{
var o=document.getElementById(objID);
var tds = table.getElementsByTagName("td");
for(var i=0;i<o.rows.length-1;i++)
{
for(var j=0;j<o.rows[i].cells.length-1;j++)
{
o.rows[i].cells[j].backgroundImage="";
//o.rows[i].cells[j].style.backgroundImage=""; //或者
}
}
}
</script>
var tds = table.getElementsByTagName("td");
for(var i=0;i <tds.length;i++){
var td=tds[i];
td.style.backgroundImage="";
}