var firstfocus = true;
var defaultsearch;

function SearchFocus(o)
{
    if (firstfocus)
    {
        firstfocus = false;
        defaultsearch = o.value;
        o.value = '';
    }
}
function SearchBlur(o)
{
    if (o.value == '')
    {
        o.value = defaultsearch;
        firstfocus = true;
    }
}