jQuery.Range  class     

An object specifiying a range. Depending on the object, the selected text will be different. $.Range supports the following types

• undefined or null - returns a range with nothing selected
• Node - returns a range with the node's text selected

• Point - returns a range at the point on the screen. The point can be specified like:

  //client coordinates
  {clientX: 200, clientY: 300}
  
  
  //page coordinates
  {pageX: 200, pageY: 300} 
  {top: 200, left: 300}
  

• TextRange a raw text range object.