Someone

<script language="javascript" type="text/javascript">
function program(frase){

document.write(frase);
char0 = frase.substr(0,1);
char0 = char0.toUpperCase();
document.write(char0);
conteo = 1;
frase = frase.slice(1);

mayus = 0
char1 = frase.substr(0,1);
while (char1 != "."){
char1 = frase.substr(0,1);
frase = frase.slice(1);
	if (char1 = " "){
		conteo = conteo +1;
		mayus = 1;
		document.write(char1);
		char1 = frase.substr(0,1);
		}else{
			if (mayus = 1){
			char1 = char1.toUpperCase();
			mayus = 0;
			document.write(char1);
			char1 = frase.substr(0,1);
			}else{
				document.write(char1);
				char1 = frase.substr(0,1);
			}
		}
}
alert(conteo);
}

frase = prompt("Ingrese su Frase");
program(frase);
</script>