var index =0;
var start=document.getElementsByClassName("start_text");
var start_text_flag=0;
movePagebg();
startText();
function movePagebg(){
    setTimeout(function(){
        Array.from(document.getElementsByClassName("page1_img")).forEach(function(element){
        index = element.className.split("page1i")[1] * 1;
        element.className = `page1_img page1i${(index-1 < 0) ? 2  : index-1}`;
    })
    movePagebg();
    },5000)
}
function startText(){
        var startTextinterval=setInterval(function() {
            if(start_text_flag==2){
                clearInterval(startTextinterval);
            }
            start[0].className='start_text1';
            start_text_flag++;
        }, 200);

}