var speed=10; bulletindemo2.innerhtml=bulletindemo1.innerhtml var bulletmymar=setinterval(bulletinmarquee,speed) function bulletinmarquee() { if(bulletindemo2.offsettop-bulletindemo.scrolltop<=0) bulletindemo.scrolltop-=bulletindemo1.offsetheight else{ bulletindemo.scrolltop = bulletindemo.scrolltop+1; } } bulletindemo.onmouseover=function() {clearinterval(bulletmymar)} bulletindemo.onmouseout=function() {bulletmymar=setinterval(bulletinmarquee,speed)}