function iface_buttons() {     
    if (!document.getElementsByTagName || !document.createTextNode || !document.images) return;    
    var lks = document.getElementsByTagName('a');    
    for (var i = 0; i < lks.length; i++) {
        var lk = lks[i];
        if (lk.className.indexOf('iface_link') != -1) {
            var img = lk.getElementsByTagName('img')[0];
            addEvent(img, 'onmouseover', function() { this.src = this.src.replace(/\.gif/i, '_hover.gif'); });
            addEvent(img, 'onmouseout', function() { this.src = this.src.replace(/_hover\.gif/i, '.gif'); });
        }            
    }
    var inps = document.getElementsByTagName('input');
    for (var i = 0; i < inps.length; i++) {
        var inpt = inps[i];
        /*
        if (inpt.getAttribute('type') == 'text' && navigator.userAgent.toLowerCase().indexOf('safari') != -1) {            
            inpt.setAttribute('style', 'height: 40px !important; ' + inpt.getAttribute('style'));
        }
        */  
        if (inpt.getAttribute('type') == 'image' && inpt.src.indexOf('search') == -1) {
            addEvent(inpt, 'onmouseover', function() { this.src = this.src.replace(/\.gif/i, '_hover.gif'); });
            addEvent(inpt, 'onmouseout', function() { this.src = this.src.replace(/_hover\.gif/i, '.gif'); });
        }
    }
}