ceu-notes/1/LMSGI/PromedioNotas/A00098_Recoger3ValoresForm.html

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2022-04-26 18:05:23 +00:00
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/
xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Ejemplo de código JavaScript en el propio documento</title>
<script type="text/javascript">
/**function limita(maximoCaracteres) {
var elemento = document.getElementById("texto");
if(elemento.value.length >= maximoCaracteres ) {
return false;
}
else {
return true;
}
}
**/
function comprueba(){
var cuadrotxt = document.getElementById("elemento");
alert ("value; "+cuadrotxt.value+"\n type: "+cuadrotxt.type+"\n name: "+cuadrotxt.name);
alert ("elemento2: "+cuadrotxt.form.elemento2.value);
}
window.onload=function(){
if(document.forms.length > 0) {
if(document.forms[0].elements.length > 0) {
document.forms[0].elements[0].focus();
}
}
}
</script>
</head>
<body>
<form name="formulario" id="formulario" >
<input type="number" name="elemento" id="elemento" />
<input type="number" name="elemento2" id="elemento2" />
<textarea id="texto" onkeypress="return limita(100);"></textarea>
<input type="button" value="Enviar" onclick="this.value='enviando...';comprueba()"/>
</form>
</body>
</html>
<!--this.disabled=true;-->