JS/jQuery: set/retrieve background position

TeviH · 08-29-2008, 01:43 PM

Hello,

I modified a previously written script which controlled dragging an HTML element on the screen with the mouse. I modified it to instead drag the background position, but change only the X value (horizontal axis).

The problem is, every time I click the element to drag the background, it resets the x value back to 0. The reason is because the variable which pulls the x value pulling offsetLeft, to calculate the left positioning of the actual element, which happens to be 0. I have tried changing this to backgroundPositionX, but I get an error that backgroundPositionX is undefined.

Shouldn't it be able to retrieve the backgroundPositionX that currently exists on the property? Here is what the relevant code looks like:

Code:

lastElemLeft = this.style.backgroundPositionX;

Why won't this work?
????: NamePros.com http://www.namepros.com/programming/508850-javascript-jquery-set-retrieve-background-position.html

Thanks!

TeviH · 09-01-2008, 08:20 AM

Any help please??

08-29-2008, 01:43 PM	THREAD STARTER #1 (permalink)
TeviH NamePros Regular Join Date: Jul 2005 Location: Florida Posts: 233	JS/jQuery: set/retrieve background position Hello, I modified a previously written script which controlled dragging an HTML element on the screen with the mouse. I modified it to instead drag the background position, but change only the X value (horizontal axis). The problem is, every time I click the element to drag the background, it resets the x value back to 0. The reason is because the variable which pulls the x value pulling offsetLeft, to calculate the left positioning of the actual element, which happens to be 0. I have tried changing this to backgroundPositionX, but I get an error that backgroundPositionX is undefined. Shouldn't it be able to retrieve the backgroundPositionX that currently exists on the property? Here is what the relevant code looks like: Code: lastElemLeft = this.style.backgroundPositionX; Why won't this work? ????: NamePros.com http://www.namepros.com/programming/508850-javascript-jquery-set-retrieve-background-position.html Thanks! __________________ www.headlinercreative.com

09-01-2008, 08:20 AM	THREAD STARTER #2 (permalink)
TeviH NamePros Regular Join Date: Jul 2005 Location: Florida Posts: 233	Any help please?? __________________ www.headlinercreative.com

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)