this.name="parentWindow";
popUnitWinHandle = null;

function popUnitWin(url){
 if (popUnitWinHandle != null && !popUnitWinHandle.closed){
	 popUnitWinHandle.location.href=url;
	 popUnitWinHandle.focus();
	}
	else {
        popUnitWinHandle= open(url,"windowName",'scrollbars=yes,resizable=1,width=720,height=600,top=20,left=20');
	}
}
function print_window ()
{
          window.print ();
}