function popWin(imgName){ 
 // Define Window width and height right here so that it can easily be modified. 
 var winWidth = 650; 
 var winHeight = 575; 
 
 // Midx and Midy will be used to center the window.
 var midx = (screen.width/2) - (winWidth/2); 
 var midy = (screen.height/2) - (winHeight/2)
 
 // Set up the Propeties String
var props = "resizable=yes,scrollbars=yes,height=" + winHeight + ",width=" + winWidth + ",screenX=" + midx + ",screenY=" + midy + ",top=" + midy + ",left=" + midx; 
  
 myWin = window.open(imgName, "PopUp", props);
 window.myWin.focus(); 
} 

function popVideo(imgName,w,h){ 
 // Define Window width and height right here so that it can easily be modified. 
 var winWidth = w + 80; 
 var winHeight = h + 65; 
 
 // Midx and Midy will be used to center the window.
 var midx = (screen.width/2) - (winWidth/2); 
 var midy = (screen.height/2) - (winHeight/2)
 
 // Set up the Propeties String
var props = "resizable=yes,scrollbars=yes,height=" + winHeight + ",width=" + winWidth + ",screenX=" + midx + ",screenY=" + midy + ",top=" + midy + ",left=" + midx; 
  
 myWin = window.open(imgName+"&w="+w+"&h="+h, "PopUp", props);
 window.myWin.focus(); 
}