function getResolution() {
	var res = "";
	switch(screen.width) {
 	case 640: res ='640x480'; res='low'; break;
 	case 720: res ='720x480'; res='low'; break;
 	case 800: res ='800x600'; res='low'; break;
 	case 848: res ='848x480'; res='low'; break;
 	case 1024: res='std'; break;
 	
 	/*case 1152: res ='1152x864'; res='high'; break;
 	case 1280: res ='1280x1024'; res='high'; break;
 	case 1600: res ='1600x1200'; res='high'; break;*/
	}
	if (screen.width>1024) {
		res='high'; 
	}
return res;

} //function