楼主的习惯很好啊~
<input type="text" id="inp" />
<script>
function getPos(obj){
var tem = obj, left=0, top=0;
while(tem!=null){
left += tem.offsetLeft;
top += tem.offsetTop;
tem = tem.offsetParent;
}
return {'left':left, 'top':top}
} var pos = getPos(document.getElementById('inp'));
alert('inp.left='+pos.left+'\n'+'inp.top='+pos.top);
</script>
<input type="text" id="inp" />
<script>
function getPos(obj){
var tem = obj, left=0, top=0;
while(tem!=null){
left += tem.offsetLeft;
top += tem.offsetTop;
tem = tem.offsetParent;
}
return {'left':left, 'top':top}
} var pos = getPos(document.getElementById('inp'));
alert('inp.left='+pos.left+'\n'+'inp.top='+pos.top);
</script>
<tr>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr>
<td><input onclick="ss(this)"></td>
<td><input name="Input" onclick="ss(this)" /></td>
<td><input name="Input2" onclick="ss(this)" /></td>
</tr>
<tr>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr>
<td> </td>
<td> </td>
<td> </td>
</tr>
</table>
<script>
function ss(e)
{
var left=e.offsetLeft
var top=e.offsetTop
var width =e.offsetWidth
var height =e.offsetHeight
while (e=e.offsetParent) {
left += e.offsetLeft;
top += e.offsetTop;
};alert(left+width) //右边的x 坐标
alert(top+height) //input的下边框坐标
alert(top) //input上边框坐标
}
</script>
结帖绿明明只有50%
然后根据你设置的文本框的wighth和height就可以得到其他三个角坐标