function go(url){
  location.href=url;
}

function escribirCaracteres(e) { 
    tecla = (document.all) ? e.keyCode : e.which;
    if (tecla==8) return true;
    patron = /\w/;
    te = String.fromCharCode(tecla);
    return patron.test(te);
} 

function escribirNumeros(e) { 
    tecla = (document.all) ? e.keyCode : e.which;
    if (tecla==8) return true;
    patron = /\d/;
    te = String.fromCharCode(tecla);
    return patron.test(te);
} 

function escribeURL(texto, inputId) {
	var str = texto.toLowerCase();
	var from 	= "ÀÁÂÃÄÅàáâãäåÒÓÔÕÖØòóôõöøÈÉÊËèéêëÇçÌÍÎÏìíîïÙÚÛÜùúûüÿÑñ";
	var to 		= "AAAAAAaaaaaaOOOOOOooooooEEEEeeeeCcIIIIiiiiUUUUuuuuyNn";
	var subst;
	for (i = 0; i < from.length; i++) {
		subst = (to[i]) ? to[i] : to[to.length-1];
		//str = str.replace(new RegExp(str[str.indexOf(from[i])], 'g'), subst);
	}
	str = str.replace(/\|/g,'');
	str = str.replace(/\@/g,'');
	str = str.replace(/\#/g,'');
	str = str.replace(/\€/g,'');
	str = str.replace(/\¬/g,'');
	str = str.replace(/\ª/g,'');
	str = str.replace(/\!/g,'');
	str = str.replace(/\”/g,'');
	str = str.replace(/\'/g,'');
	str = str.replace(/\•/g,'');
	str = str.replace(/\$/g,'');
	str = str.replace(/\%/g,'');
	str = str.replace(/\&/g,'');
	str = str.replace(/\//g,'');
	str = str.replace(/\(/g,'');
	str = str.replace(/\)/g,'');
	str = str.replace(/\=/g,'');
	str = str.replace(/\?/g,'');
	str = str.replace(/\¿/g,'');
	str = str.replace(/\º/g,'');
	str = str.replace(/\’/g,'');
	str = str.replace(/\¡/g,'');
	str = str.replace(/\`/g,'');
	str = str.replace(/\+/g,'');
	str = str.replace(/\´/g,'');
	str = str.replace(/\^/g,'');
	str = str.replace(/\{/g,'');
	str = str.replace(/\}/g,'');
	str = str.replace(/\]/g,'');
	str = str.replace(/\[/g,'');
	str = str.replace(/\;/g,'');
	str = str.replace(/\:/g,'');
	str = str.replace(/\./g,'');
	str = str.replace(/\+/g,'');
	str = str.replace(/\~/g,'');
	str = str.replace(/\·/g,'');
	str = str.replace(/\-/g,'');
	str = str.replace(/\'/g,'');
	str = str.replace(/\\/g,'');
	str = str.replace(/^\s*|\s*$/g,"");
	nuevoTexto = str.replace(/ /g,"_");
	document.getElementById(inputId).value = nuevoTexto;
}

function fechaHoy() {  
	var fecha_actual = new Date()  
	var dia = fecha_actual.getDate()  
	var mes = fecha_actual.getMonth() + 1  
	var anio = fecha_actual.getFullYear()  
	if (mes < 10)  
		mes = '0' + mes 
	if (dia < 10)  
		dia = '0' + dia  
	return (anio + "-" + mes + "-" +dia )  
}  

function comparaFechas(fecha, fecha2) {  
	var xMonth=fecha.substring(5, 7);  
	var xDay=fecha.substring(8, 10);  
	var xYear=fecha.substring(0,4);  
	var yMonth=fecha2.substring(5, 7);  
	var yDay=fecha2.substring(8, 10);    
	var yYear=fecha2.substring(0,4);  
	if (xYear> yYear) {  
		return(true)  
	}  
	else {  
	  if (xYear == yYear){   
		if (xMonth> yMonth) {  
			return(true)  
		}  
		else{   
		  if (xMonth == yMonth)  {  
			if (xDay>= yDay)  
			  return(true);  
			else  
			  return(false);  
		  }  
		  else  
			return(false);  
		}  
	  }  
	  else  
		return(false);  
	}  
}