function showItem (itemID)
{
var about_text;
switch (itemID) {
case "m1": about_text="текст1"; break;
case "m2": about_text="текст2"; break;
case "m3": about_text="текст3"; break;
case "m4": about_text="текст4"; break;
case "m5": about_text="текст5"; break;
case "m6": about_text="текст6"; break;
case "m7": about_text="текст7"; break;
case "m8": about_text="текст8"; break;
case "m9": about_text="текст9"; break;
}
//document.getElementById('about').innerHTML= about_text;
}

function hideItem ()
{
//document.getElementById('about').innerHTML= "";
}