function getcss(cssfile){
loadcss = document.createElement('link')
loadcss.setAttribute("rel", "stylesheet")
loadcss.setAttribute("type", "text/css")
loadcss.setAttribute("href", cssfile)
document.getElementsByTagName("head")[0].appendChild(loadcss)
}

if(screen.height <= '800')

{ getcss('style_small.css')}



else

{ getcss('style_large.css')}