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serialk89 on 03/28/12

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Last Edited at 03/28/12 05:04am

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Validar solo el ingreso de String con Javascript

/ Published in: JavaScript

Valida por medio del metodo onkeypress de un campo input, que solo se ingresen string /[a-zA-Z]/

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/**
*
* @permite ingresar sÃ³lo letras 
* @versiÃ³n:1.0.0  @modificado:xx de xx de xxxx   
* @autor: Jaime QuiÃ±ones
*
*/
function stringCheck(e, field) {
 
    key = e.keyCode ? e.keyCode : e.which
 
	//alert(key);
	//backspace
    if(key == 32) return true;
 
	//numeros 0-9
	if((key >= 48 && key <= 57) || key == 42) return false;
 
	// Caracteres Raros
	if(	key == 94 || 
		key == 59 || 
		key == 58 || 
		key == 61 || 
		key == 43 || 
		key == 45 || 
		key == 95 || 
		key == 47 || 
		key == 96 || 
		key == 40 || 
		key == 41 || 
		key == 91 || 
		key == 123 || 
		key == 92 || 
		key == 124 || 
		key == 125 || 
		key == 93 || 
		key == 39 || 
		key == 34 || 
		key == 44 || 
		key == 46 || 
		key == 47 || 
		key == 231 || 
		key == 42 || 
		key == 168 || 
		key == 33 || 
		key == 161 || 
		key == 183 || 
		key == 8364 || 
		key == 37 || 
		key == 191 || 
		key == 186 || 
		key == 170 || 
		key == 64 || 
		key == 35 || 
		key == 126 || 
		key == 36 || 
		key == 38 || 
		key == 180 || 
		key == 63) return false;
 
} 
 
 
<!-- EN UN INPUT -->
onkeypress="return stringCheck(event, this);"