108 lines
2.4 KiB
HTML
108 lines
2.4 KiB
HTML
<html>
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<head>
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<title>Example 8.14</title>
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<script type="text/javascript">
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function getRings()
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{
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var rings = new Array();
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document.getElementById('ring_inventory').innerHTML = ("");
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var numRings = parseInt(prompt("How many rings are in the inventory now?"));
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for (i = 0; i <= (numRings - 1); i++)
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{
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rings[i] = prompt("Enter ring # " + (i + 1) +":");
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}
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displayRings(rings);
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addRings(rings);
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deleteRings(rings);
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}
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function displayRings(rings)
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{
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var r = rings.length;
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for (i = 0; i <= (r - 1); i++)
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{
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document.getElementById('ring_inventory').innerHTML = ("<h3>" + rings + "</h3>");
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}
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}
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function addRings(rings)
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{
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var r = rings.length;
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numAdd = parseInt(prompt("If you want to add to the inventory, enter the number of rings you want to add (or enter 0):"));
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for (i = 0; i <= (numAdd - 1); i++)
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{
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if (numAdd == 0)
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break;
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var newRing = prompt("Enter a ring to add:");
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rings.push(newRing);
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}
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displayRings(rings);
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}
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function deleteRings(rings)
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{
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var r = rings.length;
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numSubt = parseInt(prompt("If you want to subtract from the inventory, enter the number of rings you want to subtract (or enter 0):"));
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for (i = 0; i <= (numSubt - 1); i++)
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{
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if (numSubt == 0)
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break;
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var oldRing = prompt("Enter a ring to delete:");
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var flag = 0;
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for (j = 0; j <= (r - 1); j++)
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{
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if (rings[j] == oldRing)
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{
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rings.splice(j,1);
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flag = 1;
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}
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}
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if (flag == 0)
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{
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alert(oldRing + " is not part of the inventory.");
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break;
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}
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}
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displayRings(rings);
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}
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</script>
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<style type="text/css">
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<!--
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body {
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margin: 20pt;
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padding: 5%;
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width: 80%;
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}
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.div_width {
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width: 33%;
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float: left;
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}
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-->
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</style>
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</head>
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<body>
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<div id="container">
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<img src="images/jewel_box1.jpg" class="floatleft" />
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<h1 align="center">Jackie's Jewelry Inventory</h1>
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<div style ="clear:both;"></div>
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<div = "content" width = "800">
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<div class="div_width" id="rings">
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<input type="button" value="Enter your inventory of rings" onclick="getRings()"; />
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<h2>Ring Inventory</h2>
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<div id = "ring_inventory"></div>
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</div>
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<div class="div_width" id="bracelets">
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<input type="button" value="Enter your inventory of bracelets" onclick="getBracelets()"; />
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<h2>Bracelet Inventory</h2>
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<div id = "bracelet_inventory"></div>
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</div>
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<div id="pendants" >
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<input type="button" value="Enter your inventory of pendants" onclick="getPendants()"; />
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<h2 class="div_width">Pendant Inventory</h2>
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<div id = "pendant_inventory"></div>
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</div>
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</div>
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</div>
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</body>
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</html>
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