function nwr(x,w,h,t,l,n){
          if (h == "") h = 100;
          if (w == "") w = 100;
          if (t == "") t = 10;
          if (l == "") l = 10;
          if (n == "") n = "login";
          var xx = "top="+t+",left="+l+",width="+w+ ",height="+h+", directories=0, status=1, scrollbars=yes, resizable=1, toolbar=0,menubar=0";
          msgWindow=window.open(x,n,xx);
          msgWindow.focus();
       }

function open_function(url,width,height,options) { 
	self.msgWindow = open(url, "Window", "width=" + width + ",height=" + height + ",screenX=" + (screen.width-width)/2 + ",screenY=" + (screen.height-height)/2 + ",dependent=yes" + ",left=" + (screen.width-width)/2 + ",top=" + (screen.height-height)/2 + options );
	if (self.msgWindow) { 
		self.msgWindow.focus();
		if (self.msgWindow.opener == null) self.msgWindow.opener = self;
	}
}

function get_url (url, k0 ,v0 ,k1 ,v1 ,k2 ,v2 ,k3 ,v3 ,k4 ,v4 ) { 
	if (k0 && v0) url += "?" + k0 + "=" + escape(v0); if (k1 && v1) url += "&" + k1 + "=" + escape(v1); 
	if (k2 && v2) url += "&" + k2 + "=" + escape(v2); if (k3 && v3) url += "&" + k3 + "=" + escape(v3);
	if (k4 && v4) url += "&" + k4 + "=" + escape(v4); 
	return url;
}