An image transfer effect implemented by javascript

At the request of netizens, modifying an image transfer effect has a pretty effect, but it is a little troublesome to increase the image effect. At the request of netizens, I made changes to JS today. This makes it easier to add or delete images. Here we will give a detailed description of the following points.
Var firstnum = 1;
Var secnum = 2;
Var tounum = 1;
The three variables are used to input the image ID variable. And save the current image ID for easy operation! I believe everyone will easily change it to what they want!
The Code is as follows:
<Style type = "text/css"> # mainid {position: absolute; right: 5px; top: 10px; height: 435px; width: pixel PX; overflow: hidden; background: # fff; left: 400px; border: 3px solid #666666 ;}. imgbox {position: absolute; left: 35px; margin-top: 20px; top: 105px; z-index: 90; width: 100px; height: 100px; background: # ffffff }. moveimgbox {position: absolute; left: 700px; margin-top: 20px; top: 105px; z-index: 90; width: 100px; height: 100px; background: # ffffff} </style>
[Ctrl + A select all Note: If you need to introduce external Js, You need to refresh it to execute]