[code]
document.getElementsByClassName('text').onmouseover = css-over;
document.getElementsByClassName('text').onmouseout = css-out;

function css-over() {
var elems = document.getElementsByClassName('text');
var elements = elems.getElementsByTagName('string');
elements.style = '';
}

function css-out() {
var elems = document.getElementsByClassName('text');
var elements = elems.getElementsByTagName('string');
elements.style = '';
}
[/code]

kak-to tak, mne kazhetsya