offsetLeft Property

Retrieves the calculated left position of the object relative to the layout or coordinate parent, as specified by the offsetParent property.

Syntax

HTML Scripting

N/A

[ iCoord = ] object.offsetLeft

Possible Values

iCoord

Integer that receives the left position, in pixels.

The property is read-only. The property has no default value.

Remarks

You can determine the location, width, and height of an object by using a combination of the offsetLeft , offsetTop , offsetHeight , and offsetWidth properties. These numeric properties specify the physical coordinates and dimensions of the object relative to the object's offset parent.

For more information about how to access the dimension and location of objects on the page through the Dynamic HTML (DHTML) Document Object Model (DOM), see Measuring Element Dimension and Location .

Example

This example uses the offsetLeft property to determine whether an object is in the user's view.

<SCRIPT>
function isinView(oObject)
{ var oParent = oObject.offsetParent;
var iOffsetLeft = oDiv. offsetLeft ;
var iClientWidth = oParent.clientWidth;
if (iOffsetLeft > iClientWidth)
{ alert("Scroll right for the message."); } }
</SCRIPT>
<BUTTON onclick="isinView(this)">Click here</BUTTON>
: <DIV ID=oDiv STYLE="position:absolute; top:200; left:1200;"> : </DIV>

Standards Information

There is no public standard that applies to this property.

Applies To

UL Platform Version

Win16:	4.0
Win32:	4.0
Windows CE:	4.0
Unix:	4.0
Mac:	4.0

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