function openWindow(theURL,winName,w,h,s) { 

        var width=w;

        var height=h;

        var top=(screen.height) ? (screen.height-height)/2 : 0;

        var left=(screen.width) ? (screen.width-width)/2 : 0;

        var features = '';

	  if (s==1) {features = 'scrollbars=1,width='+width+',height='+height+',top='+top+',left='+left;}

	  else {features = 'scrollbars=0,width='+width+',height='+height+',top='+top+',left='+left;};


        window.open(theURL,winName,features);

}