function Preview(form) {
var html = "";
var Titulo = form.Titulo.value;
var Ciudad = form.Ciudad.value;
if (form.Pais.options != null)
	var Pais = form.Pais.options[form.Pais.selectedIndex].value;
else
	var Pais = form.Pais.value;
var Organiza = form.Organiza.value;
var Disertante = form.Disertante.value;
var Lugar = form.Lugar.value;
var Horario = form.Horario.value;
var Arancel = form.Arancel.value;
var Informes = form.Informes.value;
var Web = form.Web.value;
var Email = form.Email.value;
var Descripcion = form.Descripcion.value;
var DiasI = form.DiaI.options[form.DiaI.selectedIndex].value;
var FdiasI = form.FdiaI.options[form.FdiaI.selectedIndex].value;
var FmesesI = form.FmesI.options[form.FmesI.selectedIndex].value;
var FaniosI = form.FanioI.options[form.FanioI.selectedIndex].value;
var DiasF = form.DiaF.options[form.DiaF.selectedIndex].value;
var FdiasF = form.FdiaF.options[form.FdiaF.selectedIndex].value;
var FmesesF = form.FmesF.options[form.FmesF.selectedIndex].value;
var FaniosF = form.FanioF.options[form.FanioF.selectedIndex].value;

switch(DiasI){
	case "00": DiasI = "-"; break;
	case "01": DiasI = "Lunes"; break;
	case "02": DiasI = "Martes"; break;
	case "03": DiasI = "Miércoles"; break;
	case "04": DiasI = "Jueves"; break;
	case "05": DiasI = "Viernes"; break;
	case "06": DiasI = "Sábado"; break;
	case "07": DiasI = "Domingo"; break;
}
switch(FmesesI){
	case "00": FmesesI = "-"; break;
	case "01": FmesesI = "enero"; break;
	case "02": FmesesI = "febrero"; break;
	case "03": FmesesI = "marzo"; break;
	case "04": FmesesI = "abril"; break;
	case "05": FmesesI = "mayo"; break;
	case "06": FmesesI = "junio"; break;
	case "07": FmesesI = "julio"; break;
	case "08": FmesesI = "agosto"; break;
	case "09": FmesesI = "septiembre"; break;
	case "10": FmesesI = "octubre"; break;
	case "11": FmesesI = "noviembre"; break;
	case "12": FmesesI = "diciembre"; break;
}
switch(DiasF){
	case "00": DiasF = "-"; break;
	case "01": DiasF = "Lunes"; break;
	case "02": DiasF = "Martes"; break;
	case "03": DiasF = "Miércoles"; break;
	case "04": DiasF = "Jueves"; break;
	case "05": DiasF = "Viernes"; break;
	case "06": DiasF = "Sábado"; break;
	case "07": DiasF = "Domingo"; break;
}
switch(FmesesF){
	case "00": FmesesF = "-"; break;
	case "01": FmesesF = "enero"; break;
	case "02": FmesesF = "febrero"; break;
	case "03": FmesesF = "marzo"; break;
	case "04": FmesesF = "abril"; break;
	case "05": FmesesF = "mayo"; break;
	case "06": FmesesF = "junio"; break;
	case "07": FmesesF = "julio"; break;
	case "08": FmesesF = "agosto"; break;
	case "09": FmesesF = "septiembre"; break;
	case "10": FmesesF = "octubre"; break;
	case "11": FmesesF = "noviembre"; break;
	case "12": FmesesF = "diciembre"; break;
}

html += "<blockquote><p><font face='Verdana, Arial, Helvetica' size='1'><b><br>";

if(FdiasI == FdiasF && FmesesI == FmesesF && FaniosI == FaniosF){
	if(DiasF != "-"){
		html += DiasF + "&nbsp;";
	}

	html += FdiasF + " de " + FmesesF + " de 20" + FaniosF + ". " + Ciudad + ", " + Pais;

}else if(FmesesI == FmesesF && FaniosI == FaniosF){
	if(DiasI != "-"){
		html += DiasI + "&nbsp;";
	}

	html += FdiasI + " al ";

	if(DiasF != "-"){
		html += DiasF + "&nbsp;";
	}

	html += FdiasF + " de " + FmesesF + " de 20" + FaniosF + ". " + Ciudad + ", " + Pais;

}else if(FaniosI == FaniosF){
	if(DiasI != "-"){
		html += DiasI + "&nbsp;";
	}

	html += FdiasI + " de " + FmesesI + " al ";

	if(DiasF != "-"){
		html += DiasF + "&nbsp;";
	}

	html += FdiasF + " de " + FmesesF + " de 20" + FaniosF + ". " + Ciudad + ", " + Pais;

}else{
	if(DiasI != "-"){
		html += DiasI + "&nbsp;";
	}

	html += FdiasI + " de " + FmesesI + " de 20" + FaniosI + " al ";

	if(DiasF != "-"){
		html += DiasF + "&nbsp;";
	}

	html += FdiasF + " de " + FmesesF + " de 20" + FaniosF + ". " + Ciudad + ", " + Pais;
}

html += "</b><br></font><font face='Verdana, Arial, Helvetica' size='1'><b><font size='2' color='#CC0000'>";

html += Titulo;

html += "</font></b><br>";

if(Organiza != ""){
	html += "<b>Organiza:</b> " + Organiza + "<br>";
}

if(Disertante != ""){
	html += "<b>Disertante:</b> " + Disertante + "<br>";
}

if(Descripcion != ""){
	html += "<br>" + Descripcion.replace(/\n/g, "<br>") + "<br><br>";
}

if(Lugar != ""){
	html += "<b>Lugar:</b> " + Lugar + "<br>";
}

if(Horario != ""){
	html += "<b>Horario:</b> " + Horario + "<br>";
}

if(Arancel != ""){
	html += "<b>Arancel:</b> " + Arancel + "<br>";
}

if(Informes != ""){
	html += "<b>Informes:</b> " + Informes + "<br>";
}

if(Web != ""){
	html += "<b>Web:</b> <a href='" + Web + "' style='color:#FF0000'>" + Web + "</a><br>";
}

if(Email != ""){
	html += "<b>Email:</b> <a href='mailto:" + Email + "' style='color:#FF0000'>" + Email + "</a><br>";
}

html += "</font></p></blockquote>";

win = window.open("#", 'preview', 'scrollbars=yes,resizable=yes,status=yes,width=460,height=360');
win.document.write("" + html + "");
}