放大图片

function showBig(src) {
var showdiv = $('<div id="showBig_box"><a><img class="big_pro" src="' + src + '" ></a><div class="showBig_bg"></div></div>');
var hidea = $('<span class="closeBig"><img src="/images/delate_cha.png"></span>');
hidea.click(function () {
$("#showBig_box").remove();
});
showdiv.find("a").append(hidea);
$("body").append(showdiv);
$("#showBig_box").show();
}