var msg="欢迎来到辽宁石油化工大学职业技术学院网";

var interval = 100;

var spacelen = 120;

var space10=" ";

var seq=0;

function Scroll() { 

len = msg.length;

window.status = msg.substring(0, seq+1);

seq++;

if ( seq >= len ) { 

seq = spacelen; 

window.setTimeout("Scroll2();", interval );

}

else

window.setTimeout("Scroll();", interval );

} 

function Scroll2() { 

var out="";

for (i=1; i<=spacelen/space10.length; i++) out += 

space10;

out = out + msg;

len=out.length;

window.status=out.substring(seq, len);

seq++;

if ( seq >= len ) { seq = 0; };

window.setTimeout("Scroll2();", interval );

} 

Scroll();