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.width >= '1280') {
	getcss('/style_lg.css')
}

else {
	getcss('/style_sm.css')
}