/*function soloNumeros(evt){
	var key = evt.keyCode ? evt.keyCode : evt.which ;
	return (key <= 31 || (key >= 48 && key <= 57)); 
}*/
function soloNumeros(e)
{
	key = (document.all) ? e.keyCode : e.which;
	if (key==13) return false;		
	if (key==8 || key==9 || key==11 || key==0 || key==13) return true;
	reg = /\d/; 
	key = String.fromCharCode(key);
	return reg.test(key);
} 


function soloRUT(evt) {
	var key = evt.keyCode ? evt.keyCode : evt.which ;
	return (key <= 31 || (key >= 48 && key <= 57) || key == 75 || key == 107); 
}

function formatearRut(casilla){
	function formatearMillones(nNmb){
		var sRes = "";
		for (var j, i = nNmb.length - 1, j = 0; i >= 0; i--, j++)
		 sRes = nNmb.charAt(i) + ((j > 0) && (j % 3 == 0)? ".": "") + sRes;
		return sRes;
	}
	
	var casillaRut=document.getElementById(casilla);
	
	var rut=casillaRut.value;
	var ultimoDigito=rut.substr(rut.length-1,1);
	var terminaEnK = (ultimoDigito.toLowerCase()=="k");
	rutSinFormato=rut.replace(/\W/g,"");
	rut=rut.replace(/\D/g,"");
	var dv=rut.substr(rut.length-1,1);
	if(!terminaEnK){ rut=rut.substr(0,rut.length-1); }
	else{ dv="K"; }
	if(rut && dv) {
		casillaRut.value=formatearMillones(rut)+"-"+dv;
		document.getElementById('buic_rutdv').value=rutSinFormato;
	}
}