function abspielen () {
document.flag.stopit.value="0";
document.getElementById("filmbild").style.left="-1px";
var iv=window.setInterval('losgehts()',speed);
}

function losgehts () {
if(document.flag.stopit.value==0) {
var current=document.getElementById("filmbild").style.left;
var cr=current.replace(/px/,"");
cr--;
if(cr<=breite) { cr=0; }
document.getElementById("filmbild").style.left=cr+"px";
} }


function stopscr() {
document.flag.stopit.value='1'; }

function startscr() {
document.flag.stopit.value='0'; }