//abre ventanas(popups)
function abre(page,ancho,alto){
		opc = "width="+ancho+",height="+alto+",directories=no,location=no,menubar=yes,scrollbars=no,status=no,toolbar=no,resizable=no";
		window.open(page, "propuesta",opc);
}

//efectos con fondos de tablas onmouseover
function mOvr(src) {
if (!src.contains(event.fromElement)) {
src.style.cursor = 'hand';
document.getElementById(src.id).style.backgroundImage = 'url(http://www.jerezac.com/skin/l1_o.gif)';
}
}
function mOut(src) {
if (!src.contains(event.toElement)) {
src.style.cursor = 'default';
document.getElementById(src.id).style.backgroundImage = 'url(http://www.jerezac.com/skin/l1.gif)';
}
}
function mClk(src) {
if(event.srcElement.tagName=='TD'){
src.children.tags('A')[0].click();
}
}

//obtiene navegador
  var Netscape, MSIE, Opera, Unknown;
  var Win, Mac, Other;
  var NetscapeVer, MSIEVer, OperaVer;

  Netscape = navigator.appName == "Netscape";
  MSIE = navigator.appName == "Microsoft Internet Explorer";
  Opera = navigator.userAgent.indexOf("Opera") > -1;
  Unknown = !(Netscape || MSIE || Opera);

  Win = navigator.userAgent.indexOf("Win") > -1;
  Mac = navigator.userAgent.indexOf("Mac") > -1;
  Other = !(Win || Mac);

  if(Netscape) {
    NetscapeVer = parseFloat(navigator.appVersion);
  }
  else if(MSIE) {
    n = navigator.userAgent;
    MSIEVer = n.substr(n.indexOf("MSIE ")+("MSIE ").length, 4);
    MSIEVer = parseFloat(MSIEVer);

    if(Opera) {
      OperaVer = n.substr(n.indexOf("Opera ")+("Opera ").length, 4);
      OperaVer = parseFloat(OperaVer);
    }
  }

  //funcion agregar a favoritos
 function bookmark() {
  if(Win && MSIE && MSIEVer >= 4) {
    window.external.AddFavorite(
      'http://www.jerezac.com',
      'Jerez, Zacatecas, Mexico - Fotos, noticias y más');
  }
  else {
    alert("Pulsa Ctrl+D para añadir Jerezac a tus favoritos!");
  }
}