function other_preview(res){
$("#preview_video").attr('src',res.other_card)
var img = new Image();
img.src = res.other_card;
if (img.complete){
var areaW = img.width;
var areaH = img.height;
showImg(areaW,areaH,res);
}else{
img.onload = function () {
var areaW = img.width;
var areaH = img.height;
showImg(areaW, areaH, res.other_card);
}
}
}
function showImg(w,h,url){
if (w > 4000 && w < 5000){
w = w/5;
h = h/5;
}else if(w > 3000 && w < 4000){
w = w/4;
h = h/4;
}else if(w > 2000 && w < 3000){
w = w/3;
h = h/3;
}else if(w > 1000 && w < 2000){
w = w/2;
h = h/2;
}
$(".preview_content").css({width:w,height:h});
$(".preview_img").css({width:w,height:h})
var setting = {
type: 1,
title: false,
area: [w, h],
closeBtn: 0,
shadeClose: true,
shade: 0.1, //遮罩透明度
content:$("#preview")
};
layer.open(setting);
}