打字效果

%26lt;script language=%26quot;JavaScript%26quot;%26gt;
var msg = %26quot;欢迎来到网页特效世界，请多提意见。谢谢! %26quot; ;
var interval = 120
var spacelen = 120;
var space10=%26quot; %26quot;;
var seq=0;
function Helpor_net() {
len = msg.length;
window.status = msg.substring(0, seq+1);
seq++;
if ( seq %26gt;= len ) {
seq = 0;
window.status = '';
window.setTimeout(%26quot;Helpor_net();%26quot;, interval );
}
else
window.setTimeout(%26quot;Helpor_net();%26quot;, interval );
}
Helpor_net();
%26lt;/script%26gt;