function CheckFlash(){ 
	av_width = screen.availWidth;
	av_size = "not available";
	if(av_width >= 1100)av_size = "big";
	else if(av_width <= 1100 && av_width >= 1010) av_size = "medium";
	else if(av_width <= 1009 && av_width >= 770)av_size="small";
	else av_size="too small";
	return "_screen_"+av_size+"_|"+av_width;

}