• Are U Unable to Set Float to an element from the javascript?
• U can't set float to an element by javascript by assigning style.float to left/right/center

U can Do it !

I would let u know that DOM will constitute the Definitions of the Functionalities and attributes for CSS

this is because of the thing , DOM doesn't constitute a definiton for float

instead there are  different definitions for this in different browsers

so just use

element.style.cssFloat="left";  // this is for firefox

element.style.styleFloat="left";  // this is for IE

Actually we just need to know some conventions

while writing javascripts we have to check

1)does dom consists of what we r writing

2)do we follow naming convention

started with small letter ex: element.style.padding="0px"

each pronounced word is capitalized ex: element.style.paddingLeft="0px"

3)do we assign values like in dom ex:style.width="100px" but not style.width=100