function showDiv(divName) {
    document.getElementById(divName).style.display = "block";
	document.getElementById(divName + '_listitem').className="selected";

}

function hideDiv(divName) {
    document.getElementById(divName).style.display = "none";
	document.getElementById(divName + '_listitem').className="none";

}

function showTab1() {
    hideAllTabs();
    showDiv("tab1");
}

function showTab2() {
    hideAllTabs();
    showDiv("tab2");
}

function showTab3() {
    hideAllTabs();
    showDiv("tab3");
	
	className="selected" 
}

function showTab4() {
    hideAllTabs();
    showDiv("tab4");
}

function showTab5() {
    hideAllTabs();
    showDiv("tab5");
}

function showTab6() {
    hideAllTabs();
    showDiv("tab6");
}

function showTab7() {
    hideAllTabs();
    showDiv("tab7");
}

function hideAllTabs() {
    hideDiv("tab1");
    hideDiv("tab2");
    hideDiv("tab3");
    hideDiv("tab4");
    hideDiv("tab5");
    hideDiv("tab6");
    hideDiv("tab7");
}