var distance= -800
var speed = 30
function estimate() {
window.estimator.style.posLeft=window.screen.availWidth/2-250
window.estimator.style.posTop=distance;distance=distance+speed;
if(distance<=1350)setTimeout('estimate()',30);
}
function closee() {
window.estimator.style.posLeft=window.screen.availWidth/2-250
window.estimator.style.posTop=distance;distance=distance-speed;
if(distance>=-800)setTimeout('closee()',30);
}