function ObrirFinestra(sPagina, nTamX, nTamY, sNombre)
{
		
        var nAnchura, nAltura, nTop, nLeft, sPropsVentana, finestra;
		sNombre="";  //Si ho descomentam no funciona per explorer	
		
        nAnchura = screen.availWidth;
        nAltura = screen.availHeight;
        nTop = (nAltura - nTamY - 30) * .5;
        nLeft =  (nAnchura - nTamX - 10) * .5;
        sPropsVentana  = 'width=' + nTamX + ',height=' + nTamY + ',top=' + nTop + ',left=' + nLeft;
        sPropsVentana += ',scrollbars=yes,menubar=no,toolbar=no,directories=no,location=no,status=no';		
        finestra = window.open(sPagina,sNombre,sPropsVentana);
        finestra.focus();
}

function openURL(sURL) {
	document.location = sURL; 
} 


 function redireccionar() {
    setTimeout("parent.location.href='index.html'", 5000);
  }



function overBoto (btn, color) {	
	
	//var imageURL='images/reservarcentr.jpg';
	//var doc;

	//window.alert(btn);
	document.getElementById(btn).style.color=color;
	
	//document.getElementById('izq'+btn).src='images/reservarderr.jpg';	
	//document.getElementById('der'+btn).src='images/reservarizqr.jpg';

	/*
	if (document.layers)
    	document['cent'+btn].background.src = imageURL == 'none' ? null : imageURL;
  	else if (document.all)
   	 	document.all['cent'+btn].style.backgroundImage = imageURL == 'none' ? 'none' : 'url(' + imageURL + ')';
  		else if (document.getElementById)
    		document.getElementById('cent'+btn).style.backgroundImage = imageURL == 'none' ? 'none' : 'url(' + imageURL + ')';*/
	return true;
}

function exitBoto (btn, color) {
	//var imageURL='images/reservarcent.jpg';
	
	document.getElementById(btn).style.color=color;/*
	document.getElementById('izq'+btn).src='images/reservarder.jpg';	
	document.getElementById('der'+btn).src='images/reservarizq.jpg';
	
	if (document.layers)
    	document['cent'+btn].background.src = imageURL == 'none' ? null : imageURL;
  	else if (document.all)
   	 	document.all['cent'+btn].style.backgroundImage = imageURL == 'none' ? 'none' : 'url(' + imageURL + ')';
  		else if (document.getElementById)
    		document.getElementById('cent'+btn).style.backgroundImage = imageURL == 'none' ? 'none' : 'url(' + imageURL + ')';
	*/
	return true;
}