// Copyright 1999 - 2002 by Ray Stott, Pop-up Windows Script ver 2.0           
// OK to use if this copyright is included                                     
// Script is available at http://www.crays.com/jsc                             
                                                                               
var popWin = null    // use this when referring to pop-up window               
var winCount = 0                                                               
var winName = "popWin"                                                         
function openPopWin(winURL, winWidth, winHeight, winFeatures, winLeft, winTop){
  var d_winLeft = 20  // default, pixels from screen left to window left       
  var d_winTop = 20   // default, pixels from screen top to window top         
  winName = "popWin" + winCount++ //unique name for each pop-up window         
  closePopWin()           // close any previously opened pop-up window         
  if (openPopWin.arguments.length >= 4)  // any additional features?           
    winFeatures = "," + winFeatures                                            
  else                                                                         
    winFeatures = ""                                                           
  if (openPopWin.arguments.length == 6)  // location specified                 
    winFeatures += getLocation(winWidth, winHeight, winLeft, winTop)           
  else                                                                         
    winFeatures += getLocation(winWidth, winHeight, d_winLeft, d_winTop)       
  popWin = window.open(winURL, winName, "width=" + winWidth                    
           + ",height=" + winHeight + winFeatures)                             
  popWin.focus();                                                              
  }                                                                            


function closePopWin(){    // close pop-up window if it is open                
  if (navigator.appName != "Microsoft Internet Explorer"                       
      || parseInt(navigator.appVersion) >=4) //do not close if early IE        
    if(popWin != null) if(!popWin.closed) popWin.close()                       
  }                                                                            


function getLocation(winWidth, winHeight, winLeft, winTop){                    
  return ""                                                                    
  }                                                                            



function getLocation(winWidth, winHeight, winLeft, winTop){                    
  var winLocation = ""                                                         
  if (winLeft < 0)                                                             
    winLeft = screen.width - winWidth + winLeft                                
  if (winTop < 0)                                                              
    winTop = screen.height - winHeight + winTop                                
  if (winTop == "cen")                                                         
    winTop = (screen.height - winHeight)/2 - 20                                
  if (winLeft == "cen")                                                        
    winLeft = (screen.width - winWidth)/2                                      
  if (winLeft>0 & winTop>0)                                                    
    winLocation =  ",screenX=" + winLeft + ",left=" + winLeft	               
                + ",screenY=" + winTop + ",top=" + winTop                      
  else                                                                         
    winLocation = ""                                                           
  return winLocation                                                           
  }