function limit_lines(str, limit)
		{
			var arr, i, len;
			
			str = str.replace(/\r/g, "");
			arr = str.split(/\n/g);
			len = arr.length;
			
			if ( len > limit )
			{
				str = "";
				for (i = 0; (i < len && str.split(/\n/g).length <= limit); i++)
					str += arr[i] +"\n\r";
			}
			
			return( str );
		}