// Launch eSym
function LaunchSlideshow(x){
var winl = (screen.width-990)/2; 
var wint = (screen.height-620)/2; 
window.open('eSym.html','Slideshow_Window','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,copyhistory=no,width=990,height=620 top='+wint+',left='+winl+'')}

// Launch System Requirements
function LaunchSysReqs(){
var winl = (screen.width-420)/2; 
var wint = (screen.height-200)/2; 
window.open('sys_reqs.html','Sys_Reqs_Window','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,copyhistory=no,width=420,height=200 top='+wint+',left='+winl+'')}

// Launch Program Overvew Window
function LaunchOverview(){
var winl = (screen.width-520)/2; 
var wint = (screen.height-500)/2; 
window.open('program_overview.html','Program_Overview_Window','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,copyhistory=no,width=400,height=400 top='+wint+',left='+winl+'')}