White page instead of site

Sometimes when I reload my site I see only white page. It loads only after several refresh. Why does it heppen. Beacouse of script or hosting?

Welllll.... it's pretty hard to answear that question without at least a link to your site.

Sorry, here it is http://answers.ge

I see what you mean.
However, even though you have several errors in your code (http://validator.w3.org/check?uri=http%3A%2F%2Fanswers.ge%2F&charset=%28detect+automatically%29&doctype=Inline&group=0) I suspect your host for this. It seems odd that your scripts should cause the site not to display just sometimes..