تأثير آلة كاتبة على الكلام

<script language="JavaScript1.2">
/*
© Dynamic Drive (www.dynamicdrive.com)
For full source code, installation instructions,
100's more DHTML scripts, and Terms Of
Use, visit dynamicdrive.com
*/
var it=0
function initialize(){
mytext=typing.innerText
var myheight=typing.offsetHeight
typing.innerText=''
document.all.typing.style.height=myheight
document.all.typing.style.visibility="visible"
typeit()
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function typeit(){
typing.insertAdjacentText("beforeEnd",mytext.charAt(it))
if (it<mytext.length-1){
it++
setTimeout("typeit()",100)
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else
return
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if (document.all)
document.body.onload=initialize
</script>
<span id="typing" style="visibility:hidden" align="left">مكتبة هكر101للجافا سكريبت ترحب بكم
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