jquery固定表头

function fixTableHeader(gv,scrollHeight){
	var gvn=$(gv).clone(true).removeAttr("id");
    $(gvn).find("tbody").remove();
    $(gvn).find("tfoot").remove();
    $(gv).before(gvn);
    $(gv).find("thead").remove();
    $(gv).wrap("<div style='height:"+ scrollHeight +"px;width:100%; overflow-y: scroll;overflow-x:hidden; overflow: auto; padding: 0;margin: 0;'></div>");
}
thead为表格的表头
tbody
tfoot表格内容

原文地址： http://blog.csdn.net/c00w00z/article/details/5298574