function show_intro(pre,pree,n,select_n,css) {
for (i = 1; i <= n; i++) {
var intro = document.getElementById(pre + i);
var cha = document.getElementById(pree + i);
intro.style.display = "none";
cha.className=css + "1";
if (i == select_n) {
intro.style.display = "block";
cha.className=css + "2";
}
}
}

//1
var tn = 1;
var tims_running = 0;
function change_headline(n){
show_intro('focus_text','focus_but',4,n,'focus_butc');
tn = n;
}
function mouse_on(n){
tims_running = 0;
change_headline(n);
}
function mouse_out(){
tims_running = 1;
}
function run()
{
if(tims_running == 1){
change_headline(tn);
tn++;
}
if(tn>=5) 
{
tn = 1;
}
}
function startrun()
{
tims_running = 1;
tims = window.setInterval("run()",3000);
}

//2

var tn2 = 1;
var tims_running2 = 0;
function change_headline2(n){
show_intro('aocus_text','aocus_but',4,n,'aocus_butc');
tn2 = n;
}
function mouse_on2(n){
tims_running2 = 0;
change_headline2(n);
}
function mouse_out2(){
tims_running2 = 1;
}
function run2()
{
if(tims_running2 == 1){
change_headline2(tn2);
tn2++;
}
if(tn2>=5) 
{
tn2 = 1;
}
}
function startrun2()
{
tims_running2 = 1;
tims2 = window.setInterval("run2()",3000);
}


//3

var tn3 = 1;
var tims_running3 = 0;
function change_headline3(n){
show_intro('bocus_text','bocus_but',4,n,'bocus_butc');
tn3 = n;
}
function mouse_on3(n){
tims_running3 = 0;
change_headline3(n);
}
function mouse_out3(){
tims_running3 = 1;
}
function run3()
{
if(tims_running3 == 1){
change_headline3(tn3);
tn3++;
}
if(tn3>=5) 
{
tn3 = 1;
}
}
function startrun3()
{
tims_running3 = 1;
tims3 = window.setInterval("run3()",3000);
}

//4

var tn4 = 1;
var tims_running4 = 0;
function change_headline4(n){
show_intro('cocus_text','cocus_but',4,n,'cocus_butc');
tn4 = n;
}
function mouse_on4(n){
tims_running4 = 0;
change_headline4(n);
}
function mouse_out4(){
tims_running4 = 1;
}
function run4()
{
if(tims_running4 == 1){
change_headline4(tn4);
tn4++;
}
if(tn4>=5) 
{
tn4 = 1;
}
}
function startrun4()
{
tims_running4 = 1;
tims4 = window.setInterval("run4()",3000);
}

//5

var tn5 = 1;
var tims_running5 = 0;
function change_headline5(n){
show_intro('docus_text','docus_but',4,n,'docus_butc');
tn5 = n;
}
function mouse_on5(n){
tims_running5 = 0;
change_headline5(n);
}
function mouse_out5(){
tims_running5 = 1;
}
function run5()
{
if(tims_running5 == 1){
change_headline5(tn5);
tn5++;
}
if(tn5>=5) 
{
tn5 = 1;
}
}
function startrun5()
{
tims_running5 = 1;
tims5 = window.setInterval("run5()",3000);
}