<script language="Javascript">
<!--
var speed = 100// َضع سرعة الجملة هنا
var message = "ضع الكلام هنا "
var s = 0
var l = message.length
document.write("<form name='btn'><input type='button' "+" name='sc' value='"+ message +"'></form>")
function btnsc() {
document.btn.sc.value = message.substring(s,l) + message.substring(0,s)
s++
if (s >= l) {
s = 0
}
setTimeout("btnsc()",speed)
}
btnsc();
//-->
</script>