// JavaScript Document
function showItems(itemsid) {
    var obj = document.getElementById(itemsid);
    if (obj.style.visibility == 'hidden') {
        obj.style.visibility = 'visible';
    }
}

function hideItems(itemsid) {  
    var obj = document.getElementById(itemsid);
    obj.style.visibility = 'hidden';
}

function handleEnter(fieldName, event) { 
    var keyCode = document.all ? event.keyCode : event.which; 
    if (keyCode == 13) { 
        if (( document.getElementById(fieldName).type == "button" ) || ( document.getElementById(fieldName).type == "submit" ) || ( document.getElementById(fieldName).type == "image" ))
        {
            document.getElementById(fieldName).click();
        } else {
            document.getElementById(fieldName).focus();
        }
    return false; 
    } else {
        return true; 
    } 
}

function hola()
 {alert('hola mundo');}