📄 ch15q2_picksystem.htm

📁 javascript source code part1
💻 HTM
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<HTML>
<HEAD>

<SCRIPT>
var CompItems = new Array();
CompItems[100] = 1000;
CompItems[101] = 1250;
CompItems[102] = 1500;

CompItems[200] = 35;
CompItems[201] = 65;
CompItems[202] = 95;

CompItems[300] = 50;
CompItems[301] = 75;
CompItems[302] = 100;

CompItems[400] = 10;
CompItems[401] = 15;
CompItems[402] = 25;

function updateOrderDetails()
{
   var total = 0;
   var orderDetails = "<H3>Your selected system</H3>";
   var orderForm = "";
   var formElement;
   formElement = document.form1.cboProcessor[document.form1.cboProcessor.selectedIndex];
   total = parseFloat(CompItems[formElement.value]);
   orderDetails = orderDetails + "Processor : " + formElement.text
   orderDetails = orderDetails + " $" + CompItems[formElement.value] + "<BR>";

   formElement = document.form1.cboHardDrive[document.form1.cboHardDrive.selectedIndex];
   total = total + parseFloat(CompItems[formElement.value]);
   orderDetails = orderDetails + "Hard Drive : " + formElement.text
   orderDetails = orderDetails + " $" + CompItems[formElement.value] + "<BR>";

   formElement = document.form1.chkCDROM
   if (formElement.checked == true)
   {
      orderDetails = orderDetails + "CD-ROM : $" + CompItems[formElement.value] + "<BR>";
      total = total + parseFloat(CompItems[formElement.value]);
   }

   formElement = document.form1.chkDVD
   if (formElement.checked == true)
   {
      orderDetails = orderDetails + "DVD-ROM : $" + CompItems[formElement.value] + "<BR>";
      total = total + parseFloat(CompItems[formElement.value]);
   }

   formElement = document.form1.chkScanner
   if (formElement.checked == true)
   {
      orderDetails = orderDetails + "Scanner : $" + CompItems[formElement.value] + "<BR>";
      total = total + parseFloat(CompItems[formElement.value]);
   }

   formElement = document.form1.radCase
   if (formElement[0].checked == true)
   {
      orderDetails = orderDetails + "Desktop Case : $" + CompItems[formElement[0].value] + "<BR>";
      total = total + parseFloat(CompItems[formElement[0].value]);
   }
   else if (formElement[1].checked == true)
   {
      orderDetails = orderDetails + "Mini Tower Case : $" + CompItems[formElement[1].value] + "<BR>";
      total = total + parseFloat(CompItems[formElement[1].value]);
   }
   else
   {
      orderDetails = orderDetails + "Full Tower Case : $" + CompItems[formElement[2].value]
      total = total + parseFloat(CompItems[formElement[2].value]);
   }

   orderForm = orderForm + "<FORM action='ch15Q2_BuySystem.asp' method=post "
+ "name=form1 target=_top><INPUT type='submit' " + "value='Buy System'>"
+ "<INPUT type='hidden' name='txtCost' " + " value='" + total + "'>"
+ "<INPUT type='hidden' name='txtDescription' " + "value='" + orderDetails
+ "'></FORM>"

   orderDetails = orderDetails + "<P>Total Order Cost is $" + total + "</P>";

   window.parent.systemSummary.document.open();
   window.parent.systemSummary.document.write(orderDetails + orderForm);
   window.parent.systemSummary.document.close();
}

</SCRIPT>

</HEAD>
<BODY>
<FORM name=form1>
<TABLE>
<TR>
<TD width=300>
Processor
<BR>
<SELECT name=cboProcessor>
   <OPTION value=100 selected>MegaPro 1ghz</OPTION>
   <OPTION value=101>MegaPro 1.2</OPTION>
   <OPTION value=102>MegaPro 1.5ghz</OPTION></SELECT>&nbsp;
<BR><BR>
Hard Drive
Size&nbsp;
<BR>
<SELECT name=cboHardDrive>
   <OPTION value=200 selected>30gb</OPTION>
   <OPTION value=201>40gb</OPTION>
<OPTION value=202>60gb</OPTION>
</SELECT>
<BR><BR>
CD-ROM
<INPUT type="checkbox" name=chkCDROM value="300">
<BR>
DVD-ROM
<INPUT type="checkbox" name=chkDVD value="301">
<BR>
Scanner
<INPUT type="checkbox" name=chkScanner value="302">
<BR><BR>
Desktop Case
<INPUT type="radio" name=radCase checked value="400">
<BR>
Mini Tower
<INPUT type="radio" name=radCase value="401">
<BR>
Full Tower
<INPUT type="radio" name=radCase value="402">
<P>
<INPUT type="button" value="Update" name=butUpdate onclick="updateOrderDetails()">
</P>
</TD></TR>
</TABLE>
</FORM>
</BODY>
</HTML>
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