function launchWS(winName) 
{
myHeight = screen.height*.80;myWidth = 784;
if ( myHeight < 556 ) {myHeight = 556;} else if (myHeight>700) {myHeight = 700;}
var height = screen.height;
var width = screen.width;
var leftpos = width / 2 - myWidth / 2;
var toppos = (height / 2 - myHeight / 2) - 40; 
msgWindow=window.open(winName,"ws_window","toolbar=no,location=no,directories=no,resizable=yes,menubar=no,scrollbars=no,status=yes,width=" + myWidth + ",height="+ myHeight + ", left=" + leftpos + ",top=" + toppos);  
   setTimeout('msgWindow.focus()',1);
}