<script type="text/javascript">
//禁止滚动条
$(document.body).css({
"overflow-x":"hidden",
"overflow-y":"hidden"
});
//启用滚动条
$(document.body).css({
"overflow-x":"auto",
"overflow-y":"auto"
});
</script>
原文：http://www.cnblogs.com/rickons/p/5293089.html