function showReferal(a){var b=20;var c=40;if(screen){b=(screen.width-600)/2;c=(screen.height-400)/2}window.open("http://www.edgetechcorp.com/store/EmailAFriend.aspx?url="+a,"referAfriend","fullscreen=no,toolbar=no,status=no,menubar=no,scrollbars=no,resizable=no,directories=no,location=no,left="+b+",top="+c+",width=600,height=400");return false};