if (L > document.documentElement.clientWidth - this.offsetWidth) {
L = document.documentElement.clientWidth - this.offsetWidth;
}
if (T < 0) {
T = 0;
}
else if (T > document.documentElement.clientHeight - this.offsetHeight) {
T = document.documentElement.clientHeight - this.offsetHeight;
}
moveX = L + 'px';
moveY = T + 'px';
this.style.left = moveX;
this.style.top = moveY;
this.style.right = 'auto';
});