function shi_switch(sheleid, l_show) {
shele = document.getElementById(sheleid);
shlinkele = document.getElementById('lnk' + sheleid);
if (shele.style.display == 'none') {
shele.style.display = 'block';shlinkele.innerHTML = l_hide;
} else {
shele.style.display = 'none';shlinkele.innerHTML = l_show;
}}