today = new Date();

if(today.getMonth()+1 == 1) 
{
	if(today.getDate() <= 15 ) 
	{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_1_15.jpg'></a>");
	}
	else{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_1_16.jpg'></a>");
	} 
}
else if(today.getMonth()+1 == 2) 
{
	if(today.getDate() <= 15 ) 
	{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_2_15.jpg'></a>");
	}
	else{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_2_16.jpg'></a>");
	} 
}
else if(today.getMonth()+1 == 3) 
{ 
	if(today.getDate() <= 15 ) 
	{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_3_15.jpg'></a>");
	}
	else{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_3_16.jpg'></a>");
	} 
}
else if(today.getMonth()+1 == 4) 
{ 
	if(today.getDate() <= 15 ) 
	{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_4_15.jpg'></a>");
	}
	else{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_4_16.jpg'></a>");
	} 
}
else if(today.getMonth()+1 == 5) 
{ 
	if(today.getDate() <= 15 ) 
	{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_5_15.jpg'></a>");
	}
	else{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_5_16.jpg'></a>");
	} 
}
else if(today.getMonth()+1 == 6) 
{ 
	if(today.getDate() <= 15 ) 
	{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_6_15.jpg'></a>");
	}
	else{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_6_16.jpg'></a>");
	} 
}
else if(today.getMonth()+1 == 7) 
{ 
	if(today.getDate() <= 15 ) 
	{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_7_15.jpg'></a>");
	}
	else{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_7_16.jpg'></a>");
	} 
}
else if(today.getMonth()+1 == 8) 
{ 
	if(today.getDate() <= 15 ) 
	{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_8_15.jpg'></a>");
	}
	else{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_8_16.jpg'></a>");
	} 
}
else if(today.getMonth()+1 == 9) 
{ 
	if(today.getDate() <= 15 ) 
	{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_9_15.jpg'></a>");
	}
	else{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_9_16.jpg'></a>");
	} 
}
else if(today.getMonth()+1 == 10) 
{
	if(today.getDate() <= 15 ) 
	{
 	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_10_15.jpg'></a>");
	}
	else{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_10_16.jpg'></a>");
	} 
}
else if(today.getMonth()+1 == 11) 
{ 
	if(today.getDate() <= 15 ) 
	{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_11_15.jpg'></a>");
	}
	else{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_11_16.jpg'></a>");
	} 
}
else if(today.getMonth()+1 == 12) 
{ 
	if(today.getDate() <= 15 ) 
	{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_12_15.jpg'></a>");
	}
	else{
	document.write("<a href='http://www.ato-town.com/'><img border='0' src='http://www.ato-town.com/js_image/top_12_16.jpg'></a>");
	} 
}