var game_screen = ''
+ '<table border="0" cellspacing="0" cellpadding="0" width="750">'
+ '<tr bgcolor="#502F17">'
+ '	<td valign="bottom" align="center" width="100" height="200">'
+ '	<div id="item">'
+ '	<img src="images/spacer.gif" id="item_image" alt="Item" width="100" height="54" border="0">'
+ '	</div>'
+ '	</td><td valign="bottom" align="center" width="275" height="200">'
+ '	<div id="customer">'
+ '	<img src="images/spacer.gif" id="customer_image" alt="Customer" width="275" height="200" border="0">'
+ '	</div>'
+ '	</td>'
+ '	<td valign="top" align="center" width="375" background="images/speech-baloon.gif" height="200">'
+ '	<table border="0" width="300" height="200" cellspacing="0" cellpadding="25"><tr><td align="center" valign="middle">'
+ '		<div id="conversation">'
+ '		</div>'
+ '	</td></tr></table>'
+ '	</td>'
+ '</tr>'
+ '<tr bgcolor="#FFDA5E">'
+ '	<td valign="bottom" align="center" width="375"  height="150" colspan="2" background="images/register.gif" id="registertop">'
+ ' <p><input type="button" value="Give Change" title="When you are finished putting change on the counter below, click this button." onclick="check_change();"></p>'
+ ' </td>'
+ '	<td valign="top" align="left" width="375" height="150">'
+ '		<div id="change">'
+ '		</div>'
+ '	</td>'
+ '</tr>'
+ '<tr bgcolor="#AA9241">'
+ '	<td valign="top" align="center" width="375" colspan="2" height="150">'
+ '<div id="register">'
+ '	<div id="bank">'
+ '	</div>'
+ '</div>'
+ '	</td>'
+ '	<td valign="top" align="center" width="375" height="150">'
+ '		<table cellspacing="0" cellpadding="5" border="0" align="center">'
+ '			<tr>'
+ '				<td align="right"><strong>Sales Made:</strong></td><td><span id="score">0</span></td>'
+ '			</tr>'
+ '			<tr>'
+ '				<td align="right"><strong>Time Left:</strong></td><td><span id="timer">00:00</span></td>'
+ '			</tr>'
+ '			<tr>'
+ '				<td colspan="2" align="center"><input type="button" value="Start Over?" onclick="new_game()"></td>'
+ '			</tr>'
+ '		</table>'
+ '	</td>'
+ '</tr>'
+ '</table>'
+ '';

var setup_screen = ''
+ '<table border="0" cellspacing="10" cellpadding="0" width="750" height="500" bgcolor="#AA9241">'
+ '<tr>'
+ '	<td bgcolor="#ffffff" align="center" valign="top">'
+ ''
+ '	<p><img src="images/cashout.jpg" alt="Cash Out" width="600" height="207" border="0"></p>'
+ ''
+ '	<p>You\'re the cashier at this crazy store.  You need to give change to the customers'
+ '	buying things. Try to sell as many items as possible before'
+ '	the time runs out. First select game play options, then read the word problem and find out how much money you owe. Click on the coins and bills to make the correct change. For example, if you owe the customer $0.77, click on the quarter three times and click on the penny two times.</p>'
+ ''
+ '	<p>'
+ '	<strong>Difficulty:</strong> '
+ '	<label><input type="radio" name="difficulty" value="easy" id="difficulty_e" checked="checked"><span onclick="document.getElementById(\'difficulty_e\').checked=1"> Easy</span></label>'
+ '	<label><input type="radio" name="difficulty" value="medium" id="difficulty_m"><span onclick="document.getElementById(\'difficulty_m\').checked=1"> Medium</span></label>'
+ '	<label><input type="radio" name="difficulty" value="hard" id="difficulty_h"><span onclick="document.getElementById(\'difficulty_h\').checked=1"> Hard</span></label>'
+ '	</p>'
+ ''
+ '	<p>'
+ '	<strong>Display Hints:</strong> '
+ '	<label><input type="radio" name="displayhints" value="yes" id="dh_y" checked="checked"><span onclick="document.getElementById(\'dh_y\').checked=1"> Yes</span></label>'
+ '	<label><input type="radio" name="displayhints" value="no" id="dh_n"><span onclick="document.getElementById(\'dh_n\').checked=1"> No</span></label>'
+ '	</p>'
+ ''
+ '	<p>'
+ '	<strong>Show Change Amount:</strong> '
+ '	<label><input type="radio" name="showchange" value="yes" id="sc_y" checked="checked"><span onclick="document.getElementById(\'sc_y\').checked=1"> Yes</span></label>'
+ '	<label><input type="radio" name="showchange" value="no" id="sc_n"><span onclick="document.getElementById(\'sc_n\').checked=1"> No</span></label>'
+ '	</p>'
+ ''
+ '	<p><input type="button" value="Begin Game" onclick="start_game();"></p>'
+ ''
+ '	</td>'
+ '</tr>'
+ '</table>'
+ '';