function ow(wname)
{
	if ( wname == window.name)
	   return true ;

	var width = 400 ;
	var height = 400 ;
	var x = 0;
	var y= 0 ;

	var menubar = "no" ;
	var toolbar = "no" ;
	var status = "yes" ;

	switch (wname) {
		case "nutrition" :
			width = 340;
			height = 460;
			x = (screen.availWidth - width) * 0.75 ;
			y = (screen.availHeight - height) / 4 ;
			var menubar = "no" ;
			toolbar = "no" ;
			status = "no" ;
			break;
	   default :
	}

	var win = window.open(	"",
									wname,
									"toolbar=" + toolbar
										+ ",status=" + status
										+ ",menubar=" + menubar
										+ ",width=" + width
										+ ",height=" + height
										+ ",location=no,directories=no,scrollbars=yes,resizable=yes");
	win.moveTo(x,y) ;

	win.focus();
   win.document.open();
   win.document.write("<title>Loading ...</title><p>Loading ...");
   win.document.close() ;
   return true ;
}