function openwindow(url, myname, w, h, scroll) {
        vent=window.open(url,myname,'screenx=0,screeny=0,width=' + w + ',height=' + h +',directories=no,status=no,scrollbars=' + scroll + ',resize=yes,menubar=no,top=200,left=250');
        vent.focus();

}

/*function redimensionar() {
	coments = 0;
        menucentropx = document.getElementById('cuerpoCentro').offsetHeight;
        menuizqpx    =  document.getElementById('cuerpoIzquierda').offsetHeight;
        menuderpx    =  document.getElementById('cuerpoDerecho').offsetHeight;
        if (document.getElementById('comentarios')) {
          coments = document.getElementById('comentarios').offsetHeight;
        }
        pixels = menuizqpx;

        if(coments > 50)  menucentropx =  menucentropx + coments  ;
        if(pixels < menucentropx) pixels = menucentropx + 20;
        if(pixels < menuderpx)  pixels = menuderpx ;

        document.getElementById('cuerpoDerechoRayado').style.height = pixels + 'px'
}*/

function setVisible(strElement,blnVisible) {
  if(document.getElementById(strElement)) {
    var objStyle = document.getElementById(strElement).style;
    if (objStyle) {
      objStyle.display = (blnVisible == 1) ? 'block' : 'none';
    }
  }
}