如何在javascript中创建搜索引擎时识别链接？

I designed my own gallery which consists of a bunch of thumbnails on load, and when they are clicked on the image pops out to a bigger picture so the user can see it more clearly. On these pop out windows I have the ability to specify a URL which the user will be sent to if he/she clicks on the popped out image.I designed my own gallery which consists of a b