Retrieves a reference to the container object that defines the offsettop and offsetleft properties of the object. dhtml语法 | html | n/a |
|---|
| scripting | [ oelement = ] object.offsetparent |
|---|
dhtml可能的值 | oElement |
Object that
receives the container object. |
The property is read-only.
The property has no default value.
Remarks Most of the time the offsetParent property returns the body object.
Note In Microsoft® Internet Explorer 5, the offsetParent property returns the table object for the td object; in internet explorer 4.0 it returns the tr object. you can use the parentelement property to retrieve the immediate container of the table cell.
DHTML代码范例
This example shows how to determine the position of a td object. Although the td object appears to the far right in the document, its position is close to the x-axis and y-axis, because its offset parent is a table object rather than the document body. For Internet Explorer 4.0, this same example returns a position of 0,0 because the offset parent is the table row. <HTML>
<HEAD>
<TITLE>Elements: Positions</TITLE>
<SCRIPT LANGUAGE="JScript">
function showPosition()
{
var oElement = document.all.oCell;
alert("The TD element is at (" + oElement.offsetLeft +
"," + oElement.offsetTop + ")\n" + "The offset parent is "
+ oElement.offsetParent.tagName );
}
</SCRIPT>
</HEAD>
<BODY onload="showPosition()">
<P>This document contains a right-aligned table.
<TABLE BORDER=1 ALIGN=right>
<TR>
<TD ID=oCell>This is a small table.</TD>
</TR>
</TABLE>
</BODY>
</HTML>
是否符合公共标准
There is no public standard that applies to this property.
Applies To |
A,
ACRONYM,
ADDRESS,
APPLET,
AREA,
B,
BDO,
BIG,
BLOCKQUOTE,
BODY,
BR,
BUTTON,
CAPTION,
CENTER,
CITE,
CODE,
COL,
COLGROUP,
COMMENT,
CUSTOM,
DD,
DEL,
DFN,
DIR,
DIV,
DL,
DT,
EM,
EMBED,
FIELDSET,
FONT,
FORM,
FRAME,
hn,
HR,
I,
IFRAME,
IMG,
INPUT type=button,
INPUT type=checkbox,
INPUT type=file,
INPUT type=hidden,
INPUT type=image,
INPUT type=password,
INPUT type=radio,
INPUT type=reset,
INPUT type=submit,
INPUT type=text,
INS,
KBD,
LABEL,
LEGEND,
LI,
LISTING,
MAP,
MARQUEE,
MENU,
NOBR,
OBJECT,
OL,
OPTION,
P,
PLAINTEXT,
PRE,
Q,
RT,
RUBY,
S,
SAMP,
SELECT,
SMALL,
SPAN,
STRIKE,
STRONG,
SUB,
SUP,
TABLE,
TBODY,
TD,
TEXTAREA,
TFOOT,
TH,
THEAD,
TR,
TT,
U,
UL,
VAR,
XMP | |
更多语法参考 Measuring Element Dimension and Location
|