addition formula is returning wrong result

[thibault]

below is code from one of my pages.&nbsp;&nbsp;the cost() function is supposed to add up the values of tAdult, tChild, tSenior and pParking.&nbsp;&nbsp;then the display() function is supposed to display it.&nbsp;&nbsp;unfortunately, when you choose santa's village, 2 adults and 1 child it returns this:<br><br>Adults:&nbsp;&nbsp;$37.9 <br>Children:&nbsp;&nbsp;$18.95 <br>Seniors:&nbsp;&nbsp;$0 <br>Parking:&nbsp;&nbsp;$0 <br>&nbsp;---------- <br>Total:&nbsp;&nbsp;$56.849999999999994 <br>See web site for Racing Rapids prices<br><br>tTotal should be $56.85(not $56.849999999.....), because that is the sum of 37.9 and 18.95.&nbsp;&nbsp;any ideas why it is doing this? ...and how i can fix it? <br><br><br><br>&lt;HTML&gt;<br>&nbsp;&lt;HEAD&gt;&lt;TITLE&gt;Layers and JavaScript&lt;/TITLE&gt;<br>&nbsp;&lt;SCRIPT LANGUAGE=&quot;JavaScript&quot;&gt;<br><br>var vCnt = 0;<br>var vAdult = 0;<br>var vChild = 0;<br>var vSenior = 0;<br>var vTotal = 0;<br>var pAdult = 0;<br>var pChild = 0;<br>var pSenior = 0;<br>var pTotal = 0;<br>var tAdult = 0;<br>var tChild = 0;<br>var tSenior = 0;<br>var pNotes;<br><br>function fWhere() {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ind=document.formWhere.vWhere2.selectedIndex;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;val=document.formWhere.vWhere2.options[ind].value;<br>&nbsp;&nbsp;&nbsp;&nbsp;switch(val) {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;case &quot;0&quot;:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pAdult = 5;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pChild = 4;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pSenior = 4;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pParking = 5;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pNotes = &quot;Parking available near Mieg's Field&quot;;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (document.layers)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_adler&quot;].visibility='show',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_brookfield&quot;].visibility='hide',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_field&quot;].visibility='hide',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_shedd&quot;].visibility='hide',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_santa&quot;].visibility='hide';<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;else<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_adler&quot;].style.visibility='visible',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_brookfield&quot;].style.visibility='hidden',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_field&quot;].style.visibility='hidden',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_shedd&quot;].style.visibility='hidden',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_santa&quot;].style.visibility='hidden';<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;break;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;case &quot;1&quot;:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pAdult = 7;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pChild = 3.5;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pSenior = 3.5;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pParking = 4;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pNotes = &quot;Children ages 3 to 11&quot;;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (document.layers)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_adler&quot;].visibility='hide',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_brookfield&quot;].visibility='show',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_field&quot;].visibility='hide',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_shedd&quot;].visibility='hide',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_santa&quot;].visibility='hide';<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;else<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_adler&quot;].style.visibility='hidden',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_brookfield&quot;].style.visibility='visible',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_field&quot;].style.visibility='hidden',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_shedd&quot;].style.visibility='hidden',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_santa&quot;].style.visibility='hidden';<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;break;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;case &quot;2&quot;:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pAdult = 8;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pChild = 4;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pSenior = 4;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pParking = 5;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pNotes = &quot;Children ages 3 to 11&quot;;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (document.layers)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_adler&quot;].visibility='hide',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_brookfield&quot;].visibility='hide',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_field&quot;].visibility='show',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_shedd&quot;].visibility='hide',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_santa&quot;].visibility='hide';<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;else<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_adler&quot;].style.visibility='hidden',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_brookfield&quot;].style.visibility='hidden',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_field&quot;].style.visibility='visible',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_shedd&quot;].style.visibility='hidden',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_santa&quot;].style.visibility='hidden';<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;break;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;case &quot;3&quot;:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pAdult = 13;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pChild = 9;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pSenior = 9;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pParking = 5;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pNotes = &quot;Children ages 3 to 11&quot;;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (document.layers)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_adler&quot;].visibility='hide',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_brookfield&quot;].visibility='hide',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_field&quot;].visibility='hide',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_shedd&quot;].visibility='show',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_santa&quot;].visibility='hide';<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;else<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_adler&quot;].style.visibility='hidden',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_brookfield&quot;].style.visibility='hidden',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_field&quot;].style.visibility='hidden',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_shedd&quot;].style.visibility='visible',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_santa&quot;].style.visibility='hidden';<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;break;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;case &quot;4&quot;:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pAdult = 18.95;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pChild = 18.95;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pSenior = 18.95;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pParking = 0;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pNotes = &quot;See web site for Racing Rapids prices&quot;;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (document.layers)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_adler&quot;].visibility='hide',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_brookfield&quot;].visibility='hide',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_field&quot;].visibility='hide',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_shedd&quot;].visibility='hide',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.layers[&quot;lyr_santa&quot;].visibility='show';<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;else<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_adler&quot;].style.visibility='hidden',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_brookfield&quot;].style.visibility='hidden',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_field&quot;].style.visibility='hidden',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_shedd&quot;].style.visibility='hidden',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;document.all[&quot;lyr_santa&quot;].style.visibility='visible';<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;break;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;default:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pAdult = 5;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pChild = 4;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pSenior = 4;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pParking = 5;<br>&nbsp;&nbsp;&nbsp;}<br>&nbsp;&nbsp;&nbsp;Adult();<br>&nbsp;&nbsp;&nbsp;Child();<br>&nbsp;&nbsp;&nbsp;Senior();<br>}<br><br><br>&nbsp;function Adult() {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ind=document.formPeople.vAdultNum.selectedIndex;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;vAdult=document.formPeople.vAdultNum.options[ind].value;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;tAdult = vAdult&nbsp;&nbsp;* pAdult;<br><br>}<br><br>&nbsp;function Child() {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ind=document.formPeople.vChildNum.selectedIndex;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;vChild=document.formPeople.vChildNum.options[ind].value;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;tChild = vChild * pChild;<br>}<br><br>&nbsp;function Senior() {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ind=document.formPeople.vSeniorNum.selectedIndex;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;vSenior=document.formPeople.vSeniorNum.options[ind].value;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;tSenior = vSenior * pSenior;<br>}<br><br><br>function Cost() {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;tTotal = tAdult + tChild + tSenior + pParking;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;display();<br>}<br><br>function display() {<br>&nbsp;&nbsp;&nbsp;DispWin = window.open('','NewWin', 'toolbar=no,status=no,width=300,height=200')<br>&nbsp;&nbsp;&nbsp;DispWin.document.write(&quot;&lt;TABLE&gt;&lt;TR&gt;&lt;TD&gt;&quot;<br>&nbsp;&nbsp;&nbsp;DispWin.document.write(&quot;&lt;B&gt;Adults: &lt;/B&gt;&lt;/TD&gt;&lt;TD&gt;$&quot; + tAdult + &quot;&lt;/TD&gt;&lt;/TR&gt;&quot;<br>&nbsp;&nbsp;&nbsp;DispWin.document.write(&quot;&lt;TR&gt;&lt;TD&gt;&lt;B&gt;Children: &lt;/B&gt;&lt;/TD&gt;&lt;TD&gt;$&quot; + tChild + &quot;&lt;/TD&gt;&lt;/TR&gt;&quot;<br>&nbsp;&nbsp;&nbsp;DispWin.document.write(&quot;&lt;TR&gt;&lt;TD&gt;&lt;B&gt;Seniors: &lt;/B&gt;&lt;/TD&gt;&lt;TD&gt;$&quot; + tSenior + &quot;&lt;/TD&gt;&lt;/TR&gt;&quot;<br>&nbsp;&nbsp;&nbsp;DispWin.document.write(&quot;&lt;TR&gt;&lt;TD&gt;&lt;B&gt;Parking: &lt;/B&gt;&lt;/TD&gt;&lt;TD&gt;$&quot; + pParking + &quot;&lt;/TD&gt;&lt;/TR&gt;&quot;<br>&nbsp;&nbsp;&nbsp;DispWin.document.write(&quot;&lt;TR&gt;&lt;TD&gt;&lt;B&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;/B&gt;&lt;/TD&gt;&lt;TD&gt;----------&quot; + &quot;&lt;/TD&gt;&lt;/TR&gt;&quot; );<br>&nbsp;&nbsp;&nbsp;DispWin.document.write(&quot;&lt;TR&gt;&lt;TD&gt;&lt;B&gt;Total: &lt;/B&gt;&lt;/TD&gt;&lt;TD&gt;&lt;B&gt;$&quot; + tTotal + &quot;&lt;/B&gt;&quot;<br>&nbsp;&nbsp;&nbsp;DispWin.document.write(&quot;&lt;TR&gt;&lt;TD COLSPAN=2&gt;&quot; + pNotes );<br>&nbsp;&nbsp;&nbsp;DispWin.document.write(&quot;&lt;/TD&gt;&lt;/TR&gt;&lt;/TABLE&gt;&quot;<br>}<br><br>&lt;/SCRIPT&gt;&lt;/HEAD&gt;<br>&lt;BODY BGCOLOR = &quot;#EEA600&quot;&gt;<br>&lt;H2&gt;Calculate your cost&lt;/H2&gt;<br>&lt;FONT FACE=&quot;Comic Sans&quot; SIZE=2 COLOR=&quot;#FF00GG&quot;&gt;<br>Click on the place to which you would like to<br>&lt;BR&gt;<br>go.&nbsp;&nbsp;Then click the number of people in each<br>&lt;BR&gt;<br>age group for your party.&nbsp;&nbsp;To get your total<br>&lt;BR&gt;<br>cost click the &quot;My Cost&quot; button.<br>&lt;/FONT&gt;<br>&lt;BR&gt;&lt;BR&gt;<br>Where would you like to go?<br>&lt;FORM NAME=&quot;formWhere&quot;&gt;<br>&lt;SELECT NAME=&quot;vWhere2&quot; SIZE=6 onChange=&quot;fWhere();&quot;&gt;<br>&lt;OPTION VALUE=-1 SELECTED&gt;&quot;Nowhere&quot;<br>&lt;OPTION VALUE=0&gt;&quot;Adler Planetarium&quot;<br>&lt;OPTION VALUE=1&gt;&quot;Brookfield Zoo&quot;<br>&lt;OPTION VALUE=2&gt;&quot;Field Museum&quot;<br>&lt;OPTION VALUE=4&gt;&quot;Sant's Village&quot;<br>&lt;OPTION VALUE=3&gt;&quot;Shedd Aquarium&quot;<br>&lt;/SELECT&gt;<br>&lt;INPUT TYPE=&quot;button&quot; VALUE=&quot;My Cost&quot;<br>onClick=&quot;Cost();&quot;&gt;<br>&lt;/FORM&gt;<br><br><br>&lt;FORM NAME=&quot;formPeople&quot;&gt;<br>Number of Adults?<br>&lt;SELECT NAME=&quot;vAdultNum&quot; SIZE=5 onChange=&quot;Adult();&quot;&gt;<br>&lt;OPTION VALUE=1 SELECTED&gt;&quot;One&quot;<br>&lt;OPTION VALUE=2&gt;&quot;Two&quot;<br>&lt;OPTION VALUE=3&gt;&quot;Three&quot;<br>&lt;OPTION VALUE=4&gt;&quot;Four&quot;<br>&lt;/SELECT&gt;<br><br>Number of Children?<br>&lt;SELECT NAME=&quot;vChildNum&quot; SIZE=5 onChange=&quot;Child();&quot;&gt;<br>&lt;OPTION VALUE=0 SELECTED&gt;&quot;None&quot;<br>&lt;OPTION VALUE=1&gt;&quot;One&quot;<br>&lt;OPTION VALUE=2&gt;&quot;Two&quot;<br>&lt;OPTION VALUE=3&gt;&quot;Three&quot;<br>&lt;OPTION VALUE=4&gt;&quot;Four&quot;<br>&lt;/SELECT&gt;<br><br>Number of Seniors?<br>&lt;SELECT NAME=&quot;vSeniorNum&quot; SIZE=5 onChange=&quot;Senior();&quot;&gt;<br>&lt;OPTION VALUE=0 SELECTED&gt;&quot;None&quot;<br>&lt;OPTION VALUE=1&gt;&quot;One&quot;<br>&lt;OPTION VALUE=2&gt;&quot;Two&quot;<br>&lt;OPTION VALUE=3&gt;&quot;Three&quot;<br>&lt;OPTION VALUE=4&gt;&quot;Four&quot;<br>&lt;/SELECT&gt;<br>&lt;/FORM&gt;<br><br>&lt;DIV ID=&quot;lyr_adler&quot; style=&quot;position:absolute; LEFT:325; TOP:15;<br>&nbsp;width:280; height:50; background-color:black;<br>&nbsp;visibility:hidden&quot;&gt;<br>&nbsp;&nbsp;&nbsp;&lt;FONT FACE=&quot;Comic Sans&quot; SIZE=4 COLOR=&quot;#FFFFCC&quot;&gt;<br>&nbsp;&nbsp;&nbsp;Adler Planetarium<br>&nbsp;&nbsp;&nbsp;&lt;/FONT&gt;<br>&nbsp;&nbsp;&nbsp;&lt;/BR&gt;<br>&lt;A HREF = &quot;<A HREF="

http://www.adlerplanetarium.org/&quot"

TARGET="_new">

http://www.adlerplanetarium.org/&quot</A>;&gt;<br>&lt;IMG

SRC=&quot;<A HREF="

http://pages.hotbot.com/edu/thibault/images/planet.gif&quot"

TARGET="_new">

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NO BORDER&gt;<br>&lt;/A&gt;<br>&lt;BR&gt;<br>&nbsp;&nbsp;&nbsp;&lt;FONT FACE=&quot;Comic Sans&quot; SIZE=2 COLOR=&quot;#FFFFCC&quot;&gt;<br>Click on the planet to go to the Adler Planetarium web page.<br>&lt;/FONT&gt;<br>&lt;/DIV&gt;<br><br>&lt;DIV ID=&quot;lyr_brookfield&quot; style=&quot;position:absolute; LEFT:325; TOP:15;<br>&nbsp;width:280; height:50; background-color:white; visibility:hidden&quot;&gt;<br>&nbsp;&nbsp;&nbsp;&lt;FONT FACE=&quot;Comic Sans&quot; SIZE=4 COLOR=&quot;#000000&quot;&gt;<br>&nbsp;&nbsp;&nbsp;Brookfield Zoo<br>&nbsp;&nbsp;&nbsp;&lt;/FONT&gt;<br>&nbsp;&nbsp;&nbsp;&lt;/BR&gt;<br>&lt;A HREF = &quot;<A HREF="

http://www.brookfield-zoo.mus.il.us/&quot"

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NO BORDER&gt;<br>&lt;/A&gt;<br>&lt;BR&gt;<br>&nbsp;&nbsp;&nbsp;&lt;FONT FACE=&quot;Comic Sans&quot; SIZE=2 COLOR=&quot;#000000&quot;&gt;<br>Click on the tiger to go to the Brookfield Zoo web page.<br>&lt;/FONT&gt;<br>&lt;/DIV&gt;<br><br>&lt;DIV ID=&quot;lyr_field&quot; style=&quot;position:absolute; LEFT:325; TOP:15;<br>&nbsp;width:280; height:50; visibility:hidden&quot;&gt;<br>&nbsp;&nbsp;&nbsp;&lt;FONT FACE=&quot;Comic Sans&quot; SIZE=4 COLOR=&quot;#000000&quot;&gt;<br>&nbsp;&nbsp;&nbsp;Field Museum<br>&nbsp;&nbsp;&nbsp;&lt;/FONT&gt;<br>&nbsp;&nbsp;&nbsp;&lt;BR&gt;<br>&lt;A HREF = &quot;<A HREF="

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NO BORDER&gt;<br>&lt;/A&gt;<br>&lt;BR&gt;<br>&nbsp;&nbsp;&nbsp;&lt;FONT FACE=&quot;Comic Sans&quot; SIZE=2 COLOR=&quot;#000000&quot;&gt;<br>Click on the dinosaur to go to the Field Museum web page.<br>&lt;/FONT&gt;<br>&lt;/DIV&gt;<br><br>&lt;DIV ID=&quot;lyr_shedd&quot; style=&quot;position:absolute; LEFT:325; TOP:15;<br>&nbsp;width:280; height:50; visibility:hidden&quot;&gt;<br>&nbsp;&nbsp;&nbsp;&lt;FONT FACE=&quot;Comic Sans&quot; SIZE=4 COLOR=&quot;#000000&quot;&gt;<br>&nbsp;&nbsp;&nbsp;Shedd Aquarium<br>&nbsp;&nbsp;&nbsp;&lt;/FONT&gt;<br>&nbsp;&nbsp;&nbsp;&lt;BR&gt;<br>&lt;A HREF = &quot;<A HREF="

http://www.shedd.org/&quot"

TARGET="_new">

http://www.shedd.org/&quot</A>;&gt;<br>&lt;IMG

SRC=&quot;<A HREF="

http://pages.hotbot.com/edu/thibault/images/fishy.gif&quot"

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http://pages.hotbot.com/edu/thibault/images/fishy.gif&quot</A>;

NO BORDER&gt;<br>&lt;/A&gt;<br>&lt;BR&gt;<br>&nbsp;&nbsp;&nbsp;&lt;FONT FACE=&quot;Comic Sans&quot; SIZE=2 COLOR=&quot;#000000&quot;&gt;<br>Click on the fish to go to the Shedd Aquarium web page.<br>&lt;/FONT&gt;<br>&lt;/DIV&gt;<br><br>&lt;DIV ID=&quot;lyr_santa&quot; style=&quot;position:absolute; LEFT:325; TOP:15;<br>&nbsp;width:280; height:50; visibility:hidden&quot;&gt;<br>&lt;A HREF = &quot;<A HREF="

http://www.santasvillageil.com/&quot"

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NO BORDER&gt;<br>&lt;/A&gt;<br>&lt;BR&gt;<br>&nbsp;&nbsp;&nbsp;&lt;FONT FACE=&quot;Comic Sans&quot; SIZE=4 COLOR=&quot;#000000&quot;&gt;<br>&nbsp;&nbsp;&nbsp;Santa's Village<br>&nbsp;&nbsp;&nbsp;&lt;/FONT&gt;<br>&nbsp;&nbsp;&nbsp;&lt;BR&gt;<br>&nbsp;&nbsp;&nbsp;&lt;FONT FACE=&quot;Comic Sans&quot; SIZE=2 COLOR=&quot;#000000&quot;&gt;<br>Click the Village logo to go to the Santa's Village web site.<br>&lt;/FONT&gt;<br>&lt;/DIV&gt;<br><br>&lt;/BODY&gt;<br>&lt;/HTML&gt; <p>bobbie<br><a href=mailto:thibault@hotbot.com>thibault@hotbot.com</a><br><a href=

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</a><br>

 

[carpeliam]

You're getting the famous 'adding two doubles' problem, where the output is more precise than the input (ok, so maybe the problem isn't famous, but I've seen it quite a bit). This is probably not a problem in your code (I'm sure enough that I'm not about to look through it)... rather, it's your processor. Well, not a <i>problem</i>, per se, just something that comes up pretty often (I've had to deal with it in Java, it's a pain).<br><br>Here's something you can do (and something you should do often in most of your programming when you get this kind of error)... whenever you perform any kind of arithmetic on a double where the result is a double, round off to the correct number of places. For example, in this case, always round off to the 2nd decimal place. I'm almost positive that that should work 100% of the time. <p>Liam Morley<br><a href=mailto:lmorley@wpi.edu>lmorley@wpi.edu</a><br><a href=

http://www.wpi.edu/~lmorley/>

] :: imotic :: website :: [</a><br>"light the deep, and bring silence to the world.<br>
light the world, and bring depth to the silence.