// JavaScript Document

function otvorOkno(theURL, sirka, vyska) { //v2.0
//  window.open(theURL,winName,features);
    var width = sirka;
    var height = vyska;
	var winName = '';
    var left = parseInt((screen.availWidth/2) - (width/2));
    var top = parseInt((screen.availHeight/2) - (height/2));
    var features = "width=" + width + ",height=" + height + ",left=" + left + ",top=" + top + "screenX=" + left + ",screenY=" + top + ",scrollbars=1";
    window.open(theURL, winName, features);
}