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 && screen.width == 1280){
		getcss('css/1280x800.css');
	}else if(screen.height == 768 && screen.width == 1024){
		getcss('css/1024x768.css');
	}else if(screen.height == 768 && screen.width == 1366){
		getcss('css/1366x768.css');
	}else if(screen.height == 1024 && screen.width == 1280){
		getcss('css/1024x1280.css');
	}