call a WebService from Browser(javascript code)

Following links are helpful for making a webservice request

• http://debasishpramanik.wordpress.com/2007/08/17/calling-web-service-using-xmlhttp-object/#comment-1021
  

For getting Basics:

• http://www.codeproject.com/KB/aspnet/XmlHttpWS.aspx
  
• http://www.howtocreate.co.uk/tutorials/javascript/domstructure