How do I move modal screen to the right side of the screen ?

Hello,

Im trying to move a modal screen to the right side of the screen. But I cant seem to get it . What can anyone suggest. This is an autosuggest system that works pretty good but, I always seem to get hung up on this kind of stuff.

Here is my code:

Code:

---

var  listPanel = new Ext.Panel({
id : 'listPanel',             
renderTo:'modaldiv',           
floating : true,               
modal  : false,               
centered : false,             
height  : 500,               
width    : 400,               
modal:true,                   
items: [{                     
xtype: 'list',

---

Found the showBy() method