allTabs = new Array("tab1", "tab2", "tab3", "tab4", "tab5", "tab6", "tab7", "tab8", "tab9", "tab10", "tab11", "tab12", "tab13", "tab14", "tab15", "tab16", "tab17", "tab18", "tab19", "tab20", "tab21", "tab22", "tab23", "tab24", "tab25", "tab26");
function switchTab(tab) {
var tabs = document.getElementById('tabs');
var top = tabs.style.top;
var left = tabs.style.left;
for (i = 0; i < allTabs.length; i++) {
var wichTab = allTabs[i];

if (tab == i) {
obj = document.getElementById(wichTab);
obj.style.visibility = 'visible';
obj.style.top = top;
obj.style.left = left;
} else {
document.getElementById(wichTab).style.visibility = 'hidden';
}
}
}

function getMaxH() {
var maxH = 0;
for (i = 0; i < allTabs.length; i++) {
var wichTab = allTabs[i];
obj = document.getElementById(wichTab);
var tempH = obj.offsetHeight;
if (tempH > maxH) {
maxH = tempH;
}
}
return maxH;
}