Google Maps API v3 javascript标记并不总是加载

I am creating a site that uses a database in the background to track markers on a javascript google maps api. For some reason when I log in to my site and it redirects to the maps page it will load the map but no markers. Then if I refresh, the markers will show up. I didn't have the problem before until I moved it to a different site but all of the links work so it isn't a problem with links as far as I can tell. Code is below...kinda messy so I apologize.I am creating a site that uses a database in th