var carPos = 30;   
var t;   
var a;   
var kuda;   
function MoveMePlease(kuda) {   
if (kuda == 1) {   
document.getElementById('mr').style.width = '37px';   
if (carPos >= -5000) {   
t=setTimeout("MoveMePlease(1)", 150);   
carPos=carPos-10;   
writer(carPos);   
} else { clearTimeout(t); }   
}   
else if (kuda == 0) {   
document.getElementById('ml').style.width = '38px';   
if (carPos <= -10) {   
a=setTimeout("MoveMePlease(0)", 150);   
carPos=carPos+10;   
writer(carPos);   
} else { clearTimeout(a); }   
}   
}   
function cleaner() { clearTimeout(a); clearTimeout(t);   
document.getElementById('mr').style.width = ''; document.getElementById('ml').style.width = '';   
}   
function writer(newPos) { document.getElementById('lenta_in').style.left = newPos+'px'; }