// JavaScript Document
function SoloNumerosEnteros(e){
	key=(document.all)?e.keyCode:e.which;
	// NOTA: Backspace=8, Tabulador=0 Enter=13, '0' = 48, '9' = 57 , ',' = 44 , '.' = 46
	if((key!=8 && key!=0 && key!=13) && (key < 48 || key > 57)){
		return false;
	}else{
		return true;
	}
}
function vacia(campo) {
	campo.value="";
}