var curPopupWindow = null;

if (top.location.href != self.location.href) top.location.href = self.location.href;

function openWindow( url, winName, width, height, center, winType ) {

   var xposition = 50; // Postions the window vertically in px
   var yposition = 50; // Postions the window horizontally in px
   var location, menubar, resizable, scrollbars, status, titlebar;

   if ((parseInt(navigator.appVersion) >= 4 ) && (center)){
       xposition = (screen.width - 800) / 2;
       yposition = (screen.height - 600) / 2;
   }

   if (winType == "1") {           // winType 1 is for regular popup windows
      location=1;
      menubar=1;
      resizable=1;
      scrollbars=1;
      status=1;
      titlebar=1;
   } else if (winType == "2") {   // winType 2 is for Quick Tour like popups
      location=0;
      menubar=0;
      resizable=0;
      scrollbars=0;
      status=0;
      titlebar=1;
   } else if (winType == "3") {   // winType 3 is for footer like popups
      location=0;
      menubar=0;
      resizable=1;
      scrollbars=1;
      status=0;
      titlebar=1;
   } else {                       // if no arg is passed for winType
      location=1;
      menubar=1;
      resizable=1;
      scrollbars=1;
      status=1;
      titlebar=1;
   }

   // Features to specify for a new window
   args = "width=" + width + ","
   + "height=" + height + ","
   + "location=" + location + ","
   + "menubar=" + menubar + ","
   + "resizable=" + resizable + ","
   + "scrollbars=" + scrollbars + ","
   + "status=" + status + ","
   + "titlebar=" + titlebar + ","
   + "toolbar=0,"
   + "hotkeys=0,"
   + "screenx=" + xposition + ","  //NN Only
   + "screeny=" + yposition + ","  //NN Only
   + "left=" + xposition + ","     //IE Only
   + "top=" + yposition;           //IE Only

	// Performs the opening of the window (and closing of a window already opened for that page).
	if (curPopupWindow != null) {
		curPopupWindow.close();
	}
	curPopupWindow = window.open(url, winName, args, false);
	curPopupWindow.focus();
}