drag and drop

I am new to yii framework,Can you please briefly explain about drag and drop in yii and yii coderelated to it.

again you dont describe what you actually want,

which type of items you want to drag and drop where type of container ???

I think you have to take a look to http://www.yiiframework.com/doc/api/1.1/CJuiDraggable

i want to upload an image by drag and drop is it possible in yii

Thanks Kiran Sharma for that. Gave me some understanding of what needs to be done. Cheers!