jquery 让div居中显示


function showsearch()
{
var wnd = $(window), doc = $(document);
var left = doc.scrollLeft();
var top = doc.scrollTop();
left += (wnd.width() - $("#seachdiv").width())/2;
top += (wnd.height() - $("#seachdiv").height())/2;
$("#seachdiv").css("position","absolute");
$("#seachdiv").css("top",top);
$("#seachdiv").css("left",left);
if($("#seachdiv").css("display")=="none")
{
$("#seachdiv").show("slow");
}else
{
$("#seachdiv").hide("slow");
}


}


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