[jQuery] animation question

[jQuery] animation question


I need an animation like show and hide but that only animates in
width.
I've tried animate but didn't work, to extend jQuery with an script,
but it seems like that script didn't execute. The only way i've found
is to extend but having the objects extended inside the
jQuery.fn.extend(); I've seen in the jQuery script. That is not useful
because I think it isn't the best way to do it, and in that case I
can't use the script from google's api.
Here it is the extension i've made (for jQuery 1.2.6, I don't know if
it works in version 1.3):
jQuery.fn.extend({showhor:function(speed,callback){return speed?
this.animate({width:"show"},speed,callback):this.filter(":hidden").each
(function()
{this.style.display=this.oldblock||"";if(jQuery.css(this,"display")
=="none"){var elem=jQuery("<"+this.tagName+" />").appendTo
("body");this.style.display=elem.css("display");if
(this.style.display=="none")this.style.display="block";elem.remove
();}}).end();},hidehor:function
(speed,callback){return speed?this.animate
({width:"hide"},speed,callback):this.filter(":visible").each(function()
{this.oldblock=this.oldblock||jQuery.css
(this,"display");this.style.display="none";}).end();});
Thanks in advance