VML get bounding box /getBBOX

is it possible to get bounding box of particular shape in VML element via javascript /jquery ?

<v:shapestyle="HEIGHT:200px;POSITION: absolute;LEFT:1px;TOP:1px;WIDTH:200px"coordsize="1000,1000"fillcolor="green"path=" m1,50 l1,1,200,200,1,0 e"></v:shape>

i knew coordsize is bounding box of this shape. i dont know how it was set by default ?

i want to know how to get coordsize via javascript ? because i need to do set this size as shape width and height

and also is it possible to provide double values in path attribute of shape element like

path="m1.5 2,l2.3...."

but its not working.

Thanks,

Siva

siva