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