return getComputedStyle(obj, null) || drag.obj.currentStyle;

function getComputed (obj){
    if ( obj.ownerDocument && obj.ownerDocument.defaultView ) {
        return obj.ownerDocument.defaultView.getComputedStyle( obj, null );
    } else if ( obj.currentStyle ) {
        return obj.currentStyle;
    }
    return null;
}

try{ 
	 
	    return getComputedStyle(obj, null)
	   
	   } catch(e){ 
	      
		  return obj.currentStyle;
		   }