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JavaScript - Drop Down To Pull Record From Database
So I have been stuck for a couple days now on this problem. I am trying to create a form to edit existing data in my database. I have 2 drop down boxes( category then item) they do not work correctly. I am using php to populate the drop down boxes but there is nothing dynamic about doing this. I think I need to totally rewrite the page using java script or Ajax but I don't know what parts.
So I want the user to select a category from a drop down list populated by database then have it populate the item list(so I think both of these need to be java script in case they change the category it will re populate the item list). Then I just want the selection of the item to pull the information to my form so they can update it and save the update(which I am pretty sure I can save the update as a php function but need to populate the item editable information in java script). I am really looking for help on how to setup the page with java script to make database queries and use the results to update parts of the page. In case you confused here is my flow: page loads -User selects catagory query database for item list (on change event it think) -User selects item Item information is pulled and displayed from database(cost, serial number, quantity) (another on change event) -User is able to edit information and save updated results(run an update.php...) Here is a quick rundown of my code: ----I want this query to select the item based on the selected category (itemcat) <? $result = mysql_query("SELECT itemnum, itemname FROM item where itemcat = 'Item1' ", $con); //yes this is hard coded right now mysql_close($con); ?> ----end of head start of body---- ---This category list is hard coded since the categories will almost never change--- <td>Select Item</td> <td width="142"><select name="itemcatsearch" size="1"> <option value="1" selected="selected">Item1</option> <option value="2">Item2</option> <option value="3">Item3</option> <option value="4" >Item4</option> <option value="5">Item5</option> <option value="6">Item6</option> <option value="6">Item7</option> </select></td> <td width="268"> <!-- Dynamic item list -- this is just the result of the query run at the top and placed into a second drop down box> <select name="itemcat" size="1"> <? while($row = mysql_fetch_array($result)){ ?> <option value="<? echo $row['itemnum']?>" > <? echo $row['itemname']?> </option> <? } ?> I know its ugly sorry I am a noob. Any help or direction would be greatly appreciated. Similar TutorialsHi guys, so far any values recorded in my database are shown on the map: http://www.vfrflight.co.uk/new2/phpsqlajax_map_v3.html Code: <!DOCTYPE html >
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<title>PHP/MySQL & Google Maps Example</title>
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
//<![CDATA[
var customIcons = {
restaurant: {
icon: 'http://labs.google.com/ridefinder/images/mm_20_blue.png',
shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
},
bar: {
icon: 'http://labs.google.com/ridefinder/images/mm_20_red.png',
shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
}
};
function load() {
var map = new google.maps.Map(document.getElementById("map"), {
center: new google.maps.LatLng(47.6145, -122.3418),
zoom: 13,
mapTypeId: 'roadmap'
});
var infoWindow = new google.maps.InfoWindow;
// Change this depending on the name of your PHP file
downloadUrl("phpsqlajax_genxml.php", function(data) {
var xml = data.responseXML;
var markers = xml.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i++) {
var name = markers[i].getAttribute("name");
var address = markers[i].getAttribute("address");
var type = markers[i].getAttribute("type");
var point = new google.maps.LatLng(
parseFloat(markers[i].getAttribute("lat")),
parseFloat(markers[i].getAttribute("lng")));
var html = "<b>" + name + "</b> <br/>" + address;
var icon = customIcons[type] || {};
var marker = new google.maps.Marker({
map: map,
position: point,
icon: icon.icon,
shadow: icon.shadow
});
bindInfoWindow(marker, map, infoWindow, html);
}
});
}
function bindInfoWindow(marker, map, infoWindow, html) {
google.maps.event.addListener(marker, 'click', function() {
infoWindow.setContent(html);
infoWindow.open(map, marker);
});
}
function downloadUrl(url, callback) {
var request = window.ActiveXObject ?
new ActiveXObject('Microsoft.XMLHTTP') :
new XMLHttpRequest;
request.onreadystatechange = function() {
if (request.readyState == 4) {
request.onreadystatechange = doNothing;
callback(request, request.status);
}
};
request.open('GET', url, true);
request.send(null);
}
function doNothing() {}
//]]>
</script>
</head>
<body onload="load()">
<div id="map" style="width: 500px; height: 300px"></div>
</body>
</html>
However, how do i let people place markers when a button is pressed. I believe this is the code to place markers when left click occurs: Code: <!DOCTYPE html >
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<title>Google Maps JavaScript API v3 Example: Map Simple</title>
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
var marker;
var infowindow;
function initialize() {
var latlng = new google.maps.LatLng(37.4419, -122.1419);
var options = {
zoom: 13,
center: latlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
var map = new google.maps.Map(document.getElementById("map_canvas"), options);
var html = "<table>" +
"<tr><td>Name:</td> <td><input type='text' id='name'/> </td> </tr>" +
"<tr><td>Address:</td> <td><input type='text' id='address'/></td> </tr>" +
"<tr><td>Type:</td> <td><select id='type'>" +
"<option value='bar' SELECTED>bar</option>" +
"<option value='restaurant'>restaurant</option>" +
"</select> </td></tr>" +
"<tr><td></td><td><input type='button' value='Save & Close' onclick='saveData()'/></td></tr>";
infowindow = new google.maps.InfoWindow({
content: html
});
google.maps.event.addListener(map, "click", function(event) {
marker = new google.maps.Marker({
position: event.latLng,
map: map
});
google.maps.event.addListener(marker, "click", function() {
infowindow.open(map, marker);
});
});
}
function saveData() {
var name = escape(document.getElementById("name").value);
var address = escape(document.getElementById("address").value);
var type = document.getElementById("type").value;
var latlng = marker.getPosition();
var url = "phpsqlinfo_addrow.php?name=" + name + "&address=" + address +
"&type=" + type + "&lat=" + latlng.lat() + "&lng=" + latlng.lng();
downloadUrl(url, function(data, responseCode) {
if (responseCode == 200 && data.length <= 1) {
infowindow.close();
document.getElementById("message").innerHTML = "Location added.";
}
});
}
function downloadUrl(url, callback) {
var request = window.ActiveXObject ?
new ActiveXObject('Microsoft.XMLHTTP') :
new XMLHttpRequest;
request.onreadystatechange = function() {
if (request.readyState == 4) {
request.onreadystatechange = doNothing;
callback(request.responseText, request.status);
}
};
request.open('GET', url, true);
request.send(null);
}
function doNothing() {}
</script>
</head>
<body style="margin:0px; padding:0px;" onload="initialize()">
<div id="map_canvas" style="width: 500px; height: 300px"></div>
<div id="message"></div>
</body>
</html>
Help would be appreicated very much! I cannot combine the codes to save my life... I am having a problem sending info to a database. I have set up drag and drop with HTML5 and it is working, but I need to be able to get the values of the images uploaded to the database when each one is dropped into a dropzone. I don't need to upload the images to the database - just need the value of each image sent to it. Here is the HTML: Code: <ul id="images"> <li><a id="1" draggable="true"><img src="images/1.jpg" value = "flower"></a></li> <li><a id="2" draggable="true"><img src="images/2.jpg" value = "boy"></a></li> <li><a id="3" draggable="true"><img src="images/3.jpg" value = "girl"></a></li> </ul> <form name = "objects" id="form" action = "form.php" method = "post"> <div class="drop_zones"> <div class="drop_zone" id="drop_zone1" droppable="true" type = "text" name = "drop_zone1"> </div> <div class="drop_zone" id="drop_zone2" droppable="true" type = "text" name = "drop_zone2"> </div> <div class="drop_zone" id="drop_zone3" droppable="true" type = "text" type = "file" name = "drop_zone3"> </div> </div> and the javascript Code: var addEvent = (function () {
if (document.addEventListener) {
return function (el, type, fn) {
if (el && el.nodeName || el === window) {
el.addEventListener(type, fn, false);
} else if (el && el.length) {
for (var i = 0; i < el.length; i++) {
addEvent(el[i], type, fn);
}
}
};
} else {
return function (el, type, fn) {
if (el && el.nodeName || el === window) {
el.attachEvent('on' + type, function () { return fn.call(el, window.event); });
} else if (el && el.length) {
for (var i = 0; i < el.length; i++) {
addEvent(el[i], type, fn);
}
}
};
}
})();
var dragItems;
updateDataTransfer();
var dropAreas = document.querySelectorAll('[droppable=true]');
function cancel(e) {
if (e.preventDefault) {
e.preventDefault();
}
return false;
}
function updateDataTransfer() {
dragItems = document.querySelectorAll('[draggable=true]');
for (var i = 0; i < dragItems.length; i++) {
addEvent(dragItems[i], 'dragstart', function (event) {
event.dataTransfer.setData('obj_id', this.id);
return false;
});
}
}
addEvent(dropAreas, 'dragover', function (event) {
if (event.preventDefault) event.preventDefault();
this.style.borderColor = "#000";
return false;
});
addEvent(dropAreas, 'dragleave', function (event) {
if (event.preventDefault) event.preventDefault();
this.style.borderColor = "#ccc";
return false;
});
addEvent(dropAreas, 'dragenter', cancel);
// drop event handler
addEvent(dropAreas, 'drop', function (event) {
if (event.preventDefault) event.preventDefault();
// get dropped object
var iObj = event.dataTransfer.getData('obj_id');
var oldObj = document.getElementById(iObj);
// get its image src
var oldSrc = oldObj.childNodes[0].src;
oldObj.className += 'hidden';
var oldThis = this;
setTimeout(function() {
oldObj.parentNode.removeChild(oldObj); // remove object from DOM
// add similar object in another place
oldThis.innerHTML += '<a id="'+iObj+'" draggable="true"><img src="'+oldSrc+'" /> </a>';
// and update event handlers
updateDataTransfer();
// little customization
oldThis.style.borderColor = "#ccc";
}, 500);
return false;
});
and the php PHP Code: <?php $sql="INSERT INTO table_answers (drop_zone1, drop_zone2, drop_zone3) VALUES ('$_POST[drop_zone1]','$_POST[drop_zone2]','$_POST[drop_zone3]')"; if (!mysql_query($sql,$db)) { die('Error: ' . mysql_error()); } echo $_POST["drop_zone1"]; echo $_POST["drop_zone2"]; echo $_POST["drop_zone3"]; ?> There is no error, it is not registering that there is something in the dropzone - nothing is being sent through the php. I have tried doing it with just text(instead of the image) and that won't work either. I am unsure of how to target the value of each image through javascript/php. Please help if you can, Thanks Is there a way to pull a text off a certain div on a page, and put it into a javascript string? I'm certain that the field has a particular name and id that I can use, if need be.
Hello, I am trying to use select options to get birthdate and calculate the age. I got the birthday with "birthDay = document.form1.selDate;" However i'm lost on the birthMonth and birthYear. I've looked at lots of examples. The birthMonth probably needs to be converted to integer, or use 1 thru 12 rather than Jan thru Dec. But birthYear i'd think would come back as a valid number. Is anyone familiar with this? Thanks. Code: <html>
<head>
<title>Main</title>
<script language="javascript">
<!--
function Age()
{
var birthDay;
var birthMonth;
var birthYear;
var userAge;
var currentDay = new Date();
var dayNow = currentDay.getDate();
var monthNow = (currentDay.getMonth());
var yearNow = (currentDay.getFullYear());
birthDay = document.form1.selDate;
// Don't know how to get birthmonth????
// birthMonth = (parseInt(document.form1.selMonth.value)-1);
birthYear = document.form1.selYear;
// alert("birthyear " + birthYear); ( gives "birthYear [object HTMLSelectElement]")
if((monthNow > birthMonth)||(monthNow == birthMonth & dayNow >= birthDay))
{ userAge = birthYear; }
else { userAge=birthYear+1;}
alert("As of today, " + currentDay +' \n'+", you a " + (yearNow - userAge) + " years old");
}
//-->
</script>
</head>
<body>
<form name="form1" id="startOfForm">
<table><tbody>
<tr>
<td class="question"><label for="birthdate">Enter Birthdate</label></td>
<td>
<select name=selMonth>
<option value=0 selected>Month</option> <option selected value="Jan">Jan</option>
<option selected value="Feb">Feb</option> <option selected value="Mar">Mar</option>
<option selected value="Apr">Apr</option> <option selected value="May">May</option>
<option selected value="Jun">Jun</option> <option selected value="Jul">Jul</option>
<option selected value="Aug">Aug</option> <option selected value="Sept">Sept</option>
<option selected value="Oct">Oct</option> <option selected value="Nov">Nov</option>
<option selected value="Dec">Dec</option>
</select>
<select name=selDate>
<option value=0 selected>Date</option> <option selected value="1">1</option>
<option selected value="2">2</option> <option selected value="3">3</option>
<option selected value="4">4</option> <option selected value="5">5</option>
<option selected value="6">6</option> <option selected value="7">7</option>
<option selected value="8">8</option> <option selected value="9">9</option>
</select>
<select name=selYear>
<option value=0 selected>Year</option> <option value="2001">2001</option>
<option value="2000">2000</option> <option value="1999">1999</option>
<option value="1998">1998</option> <option value="1997">1997</option>
<option value="1996">1996</option> <option value="1995">1995</option>
</select>
</td>
</tr>
<tr>
<td>
<input name="cmd" type=button value="Age"
onclick="Age()" style="width:150px; height:30px;">
</td>
</tr>
</tbody></table>
</form>
</body>
</html>
I am developing a web application based on a Java servlet. The servlet outputs html and javascript codes and receives some result from a thread, which works behind the servlet. Thus, html and javascript codes dynamically varies. While result equals null (a thread is not completed), it shows "Currently processing," and refreshes Code: <div id="load"> - </div> every second automatically. After receiving some results, it should stop automatic refreshing and show "Done." I wrote source codes described below. It shows "Done" after getting some results, but does not stop refreshing. However, when I manually refresh the page (Ctrl-R), the script is loaded and reloading is stopped. How can I pull javascript codes automatically? Code: <head>
<script type=\"text/javascript\">
var auto_refresh = setInterval(
function start()
{
$('#load').load('./Page' + ' #load');
}, 1000);
</script>
</head>
<div id="load">
if (result == null) {
// the variable result is received from a behind thread every second.
// while a thread is processed
<p>Currently processing. <p>
} else {
// a thread is completed
// try to stop reloading
<script type=\"text/javascript\">
clearInterval(auto_refresh);
</script>
<p>Done. <p>
}
</div>
I'm working on an internal website at work and employees have a cookie created when they login to the customer support tool. The filename is cookie:username@domain.com/ and I'd like to use javascript to pull a variable for their username to plug into a URL for a unique link when they're viewing one of our intranet pages. I'm a Javascript newbie so any help is appreciated. @domain.com/ will always be the same but I don't know how to pull the unique username from the filename of the cookie. I don't need to actually read the cookie. Thanks! Hey all, Objective: - when you select other the pull down menu is replaced by the text field. Currently: - Gotten it to the level of when you select the other the text field appears. Question: - HOw can I modify the code so when I select the other menu option from the pull down menu and it replaced by the text field? Quote: <script type="text/javascript"> function togglefield(val) { var o = document.getElementById('other'); (val == 'Other')? o.style.display = 'block' : o.style.display = 'none'; } </script> and the form: <form action="" method="post"> <select name="sel" id="sel" onChange="togglefield(this.value);"> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> <option value="Other">Other</option> </select> <input type="text" name="other" id="other" style="display: none;"> </form> I have an function that shoud be activated when the pull down menu in triggerd, the if functions is corresponding to the same menu overig_eenh[] PHP Code: function overig_tot_abs(selectVeld, nr) { // Prijs totaal if (document.getElementsByName('overig_eenh[]')[nr].value == 'totaal') { document.getElementsByName('overig_totaal[]')[nr].value = (document.getElementsByName('overig_prijs[]')[nr].value).toFixed( 2 ) } // Prijs kg if (document.getElementsByName('overig_eenh[]')[nr].value == 'kg') { document.getElementsByName('overig_totaal[]')[nr].value = (document.getElementsByName('overig_prijs[]')[nr].value * (document.getElementsByName('materiaal_tot_gew[]')[nr].value + document.getElementsByName('plaat_tot_gew[]')[nr].value)).toFixed( 2 ) } // Prijs verf opp. if (document.getElementsByName('overig_eenh[]')[nr].value == 'verf_opp') { document.getElementsByName('overig_totaal[]')[nr].value = (document.getElementsByName('overig_prijs[]')[nr].value * (document.getElementsByName('materiaal_tot_verf_opp[]')[nr].value + document.getElementsByName('plaat_tot_verf_opp[]')[nr].value)).toFixed( 2 ) } } Form (in loop): PHP Code: <tr> <td><select name="overig_omsch[]" > <option></option> <option value=Engineering>Engineering</option> <option value=Inkoop bev.middelen>Inkoop bev.middelen</option> <option value=Inkoop snijwerk>Inkoop snijwerk</option> <option value=Spuiten>Spuiten</option> <option value=Stralen>Stralen</option> <option value=Transport>Transport</option> </select> </td> <td><select name="overig_eenh[]" onChange="overig_tot_abs(this, 0)" > <option></option> <option value="totaal">Totaal</option> <option value="kg">Per Kg</option> <option value="verf_opp">Per 1m2</option> </td> <td><input type="text" name="overig_prijs[]" size="10" value="" /></td> <td><input type="text" name="overig_totaal[]" size="10" style="text-align:right;background-color: #f1f1f1" value="" readonly="readonly" /></td> <td><input type="text" name="overig_opmerkingen[]" size="75" value="" /></td> </tr> Hi, I'm new to these forums so if anything is out of the ordinary let me know for next time or so I can correct it - please. I am also not very good with javascript but I am trying to learn the whole concept. Anyways, I am supposed to create pull down menus when I open this page: Code: <?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<!--
New Perspectives on JavaScript, 2nd Edition
Tutorial 4
Tutorial Case
The 221B Blog
Author:
Date:
Filename: holmes.htm
Supporting files: menus.js, logo.jpg, sh.jpg, shblog.css
-->
<title>The 221B Blog</title>
<link href="shblog.css" rel="stylesheet" type="text/css" />
<script type="text/javascirpt" src="menus.js"></script>
</head>
<body>
<div id="page">
<form id="searchForm" action="">
<div id="logo">
<img src="logo.jpg" alt="The 221B Blog" />
<input id="searchTxt" type="text" size="20" />
<label for="searchTxt">Search</label>
</div>
<div id="menu1" class="menu">
<a href="#">The Adventures of Sherlock Holmes</a>
</div>
<div id="menu1List" class="menuList">
<ul>
<li><a href="#">A Scandal in Bohemia</a></li>
<li><a href="#">The Red-headed League</a></li>
<li><a href="#">A Case of Identity</a></li>
<li><a href="#">The Boscombe Valley Mystery</a></li>
<li><a href="#">The Five Orange Pips</a></li>
<li><a href="#">The Man with the Twisted Lip</a></li>
<li><a href="#">The Blue Carbuncle</a></li>
<li><a href="#">The Speckled Band</a></li>
<li><a href="#">The Engineer's Thumb</a></li>
<li><a href="#">The Noble Bachelor</a></li>
<li><a href="#">The Beryl Coronet</a></li>
<li><a href="#">The Copper Beeches</a></li>
</ul>
</div>
<div id="menu2" class="menu">
<a href="#">The Memoirs of Sherlock Holmes</a>
</div>
<div id="menu2List" class="menuList">
<ul>
<li><a href="#">Silver Blaze</a></li>
<li><a href="#">The Yellow Face</a></li>
<li><a href="#">The Stock-broker's Clerk</a></li>
<li><a href="#">The "Gloria Scott"</a></li>
<li><a href="#">The Musgrave Ritual</a></li>
<li><a href="#">The Reigate Puzzle</a></li>
<li><a href="#">The Crooked Man</a></li>
<li><a href="#">The Resident Patient</a></li>
<li><a href="#">The Greek Interpreter</a></li>
<li><a href="#">The Naval Treaty</a></li>
<li><a href="#">The Final Problem</a></li>
</ul>
</div>
<div id="menu3" class="menu">
<a href="#">The Return of Sherlock Holmes</a>
</div>
<div id="menu3List" class="menuList">
<ul>
<li><a href="#">The Empty House</a></li>
<li><a href="#">The Norwood Builder</a></li>
<li><a href="#">The Dancing Men</a></li>
<li><a href="#">The Solitary Cyclist</a></li>
<li><a href="#">The Priory School</a></li>
<li><a href="#">Black Peter</a></li>
<li><a href="#">Charles Augustus Milverton</a></li>
<li><a href="#">The Six Napoleons</a></li>
<li><a href="#">The Three Students</a></li>
<li><a href="#">The Golden Pince-Nez</a></li>
<li><a href="#">The Missing Three-Quarter</a></li>
<li><a href="#">The Abbey Grange</a></li>
<li><a href="#">The Second Stain</a></li>
</ul>
</div>
<div id="menu4" class="menu">
<a href="#">The Case Book of Sherlock Holmes</a>
</div>
<div id="menu4List" class="menuList">
<ul>
<li><a href="#">The Illustrious Client</a></li>
<li><a href="#">The Blanched Soldier</a></li>
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<li><a href="#">The Three Gables</a></li>
<li><a href="#">The Sussex Vampire</a></li>
<li><a href="#">The Three Garridebs</a></li>
<li><a href="#">Thor Bridge</a></li>
<li><a href="#">The Creeping Man</a></li>
<li><a href="#">The Lion's Mane</a></li>
<li><a href="#">The Veiled Lodger</a></li>
<li><a href="#">Shoscombe Old Place</a></li>
<li><a href="#">The Retired Colourman</a></li>
</ul>
</div>
<div id="menu5" class="menu">
<a href="#">His Last Bow</a>
</div>
<div id="menu5List" class="menuList">
<ul>
<li><a href="#">Wisteria Lodge</a></li>
<li><a href="#">The Cardboard Box</a></li>
<li><a href="#">The Red Circle</a></li>
<li><a href="#">The Bruce-Partington Plans</a></li>
<li><a href="#">The Dying Detective</a></li>
<li><a href="#">The Disappearance of Lady Frances Carfax</a></li>
<li><a href="#">The Devil's Foot</a></li>
<li><a href="#">His Last Bow</a></li>
</ul>
</div>
<div id="menu6" class="menu">
<a href="#">The Novels</a>
</div>
<div id="menu6List" class="menuList">
<ul>
<li><a href="#">A Study in Scarlet</a></li>
<li><a href="#">The Sign of the Four</a></li>
<li><a href="#">The Hound of the Baskervilles</a></li>
<li><a href="#">The Valley of Fear</a></li>
</ul>
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<ul id="linkList">
<li><a href="#">Home</a></li>
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<li class="newGroup"><a href="#">Holmes Radio Podcast</a></li>
<li><a href="#">Holmes Audiobooks</a></li>
<li class="newGroup"><a href="#">About Arthur Conan Doyle</a></li>
<li><a href="#">Victorian England</a></li>
<li><a href="#">Strand Magazine</a></li>
<li><a href="#">The Holmes Atlas</a></li>
<li class="newGroup"><a href="#">Other Fictional Detectives</a></li>
<li class="newGroup"><a href="#">About the WebMaster</a></li>
<li><a href="#">Issues Archive</a></li>
</ul>
<div id="main">
<img src="sh.jpg" alt="" style="float: right; margin: 0px 0px 5px 5px" />
<p id="firstp">
The most famous of fictional detectives, Sherlock Holmes
first appeared in print in 1887, in stories written by the Scottish author
and physician, Sir Arthur Conan Doyle. Holmes is famous for his use
of deductive reasoning to solve difficult and complex cases. Almost
all Holmes stories are told in the first-person narration of
Dr. John Watson, Holmes' closest friend and confidant.</p>
<p>Doyle wrote four novels and 56 short stories in the Sherlock Holmes
canon. The first Holmes tale was the novel, <i>A Study in Scarlet</i>,
which chronicled the meeting of Holmes and Watson and covered their
first case together. As Doyle wrote additional tales, the Sherlock Holmes
stories grew in popularity, becoming a regular feature of <i>The
Strand Magazine</i>. Desiring to explore other literary pursuits, Doyle
grew tired of the detective and killed off Holmes in the short story
<i>The Final Problem</i>. However, public acclaim and a desire for more
Holmes stories eventually persuaded Doyle to resurrect the popular
detective, bringing him back in <i>The Adventure of the Empty House</i>.</p>
<p>Doyle's final Holmes story, <i>His Last Bow</i>, appeared in 1914, but
that did not end the public's fascination with Holmes and Watson. Basil
Rathbone brought the character to the silver screen in 14 movies
loosely based on Doyle's original stories. In more recent years,
Jeremy Brett played Holmes to great critical acclaim over four seasons of
the BBC series, <i>The Adventures of Sherlock Holmes</i>. In all, Holmes
has been played by over 70 actors appearing in over 200 films.</p>
<p>To enjoy online versions of the Sherlock Holmes short stories and novels,
select entries from the menu at the top of this page.</p>
</div>
</form>
</div>
</body>
</html>
Here is my javascript file: Code: /*
New Perspectives on JavaScript, 2nd Edition
Tutorial 4
Tutorial Case
Author:
Date:
Filename: menus.js
-------------------------------------------------------------
Function List:
init()
Initializes the contents of the holmes.htm Web page, setting
the display property of the pull-down menus and the initial
values of the global variables
moveMenu()
Moves the active menu from one pull-down menu to another
changeMenu()
Change the active menu displayed in the document
closeOldMenu()
Closes the active menu
rollDown()
Applies a roll-down effect the opening of the active menu
-------------------------------------------------------------
Global Variable List:
activeMenu
An object variable pointing to the currently active and open menu
timeID
A variable containing the id of a timed command using the setInterval method
clipHgt
The current height of the active menu as it is being rolled down
-------------------------------------------------------------
*/
window.onload = init;
var activeMenu = null;
var clipHgt = 0;
var timeID;
function init() {
var menus = new Array();
var allElems = document.getElementsByTagName("*");
for (var i = 0; i < allElems.length; i++) {
if (allElems[i].className == "menu") menus.push(allElems[i]);
}
for (var i = 0; i < menus.length; i++) {
menus[i].onclick = changeMenu;
menus[i].onmouseover = moveMenu;
}
document.getElementById("logo").onclick = closeOldMenu;
document.getElementById("linkList").onclick = closeOldMenu;
document.getElementById("main").onclick = closeOldMenu;
}
function moveMenu() {
// this function moves the pull-down menu from one title to another
if (activeMenu) {
closeOldMenu();
menuID = this.id + "List";
activeMenu = document.getElementById(menuID);
activeMenu.style.clip = "rect(0px, 150px, 0px, 0px)";
activeMenu.style.display = "block";
timeID = setInterval("rollDown()", 1);
}
}
function changeMenu() {
// this function changes the pull-down menu displayed in the document
closeOldMenu();
menuID = this.id + "List";
activeMenu = document.getElementById(menuID);
activeMenu.style.clip = "rect(0px, 150px, 0px, 0px)";
activeMenu.style.display = "block";
timeID = setInterval("rollDown()", 1);
}
function closeOldMenu() {
if (activeMenu) {
clearInterval(timeID);
activeMenu.style.display = "none";
activeMenu = null;
}
}
function rollDown() {
clipHgt = clipHgt + 10;
if (clipHgt < 400) {
activeMenu.style.clip = "rect(0px, 150px," + clipHgt + "px, 0px)";
} else {
clearInterval(timeID);
clipHgt = 0;
}
}
The book's tutorial instructed me to copy down every thing I did yet it doesn't work at all! I've tried on Safari, IE, and Firefox. Can someone tell me what I'm doing wrong? EDIT: Here is the CSS file. Code:
/*
New Perspectives on JavaScript, 2nd Edition
Tutorial 4
Tutorial Case
Author:
Date:
Filename: shblog.css
This file contains styles used in the holmes.htm file.
*/
* {padding: 0px; margin: 0px; line-height: 1.2}
body {background-color: white;
font-family: 'Trebuchet MS', Arial, Verdana, sans-serif;
font-size: 12px}
#page {position: absolute; top: 0px; left: 10px; width: 850px}
a {text-decoration: none; color: black}
p {margin: 15px 0px}
ul {list-style-type: none}
#logo {position: absolute: top: 0px; left: 0px;
width: 100%; height: 108px; background-color: white; z-index: 3}
#logo img {float: left}
#logo label {float: right; margin-top: 15px; margin-right: 10px}
#logo input {float: right; margin-top: 15px; background-color: ivory}
.menu {position:absolute; top: 110px; width: 140px; height: 35px; z-index: 3;
border: 1px solid black; color: black; background-color: rgb(212, 212, 212);
text-align: center}
.menu a {display: block; width: 140px; height: 35px; color: black}
.menu a:hover {background-color: rgb(151, 151, 151); color: white}
#menu1, #menu1List {left: 0px}
#menu2, #menu2List {left: 141px}
#menu3, #menu3List {left: 282px}
#menu4, #menu4List {left: 423px}
#menu5, #menu5List {left: 564px}
#menu6, #menu6List {left: 705px}
.menuList {position: absolute; top: 146px; width: 140px; z-index: 2;
background-color: ivory; border: 1px solid black; display: none}
.menuList li {margin: 5px}
.menuList a {display: block; width: 132px}
.menuList a:hover {background-color: rgb(151, 151, 151); color: white}
#linkList {position: absolute; top: 160px; left: 5px; width: 175px;
border-right: 1px solid black}
#linkList li {line-height: 1.5}
#linkList .newGroup {margin-top: 15px}
#linkList a:hover {text-decoration: underline overline;
color: red; background-color: ivory}
#main {position: absolute; top: 160px; left: 190px; z-index: 1}
#firstp {margin-top: 0px}
#firstp:first-line {font-variant: small-caps; font-weight: bold}
#firstp:first-letter {float: left; font-size: 400%; font-family: 'Times New Roman', serif;
line-height: 0.8; margin: 0px 5px 0px 0px}
Hi all I have relatively easy task I need to accomplish but as per usual I have very little idea of how to do it. I have done a google search to no avail. Basically I need to: 1. Pull a value from inside a div Code: <div id="number">(invoice #1017)</span> 2. Populate a form input field with that value. Does this make sense? If not let me know if you need any more info. Thanks Hello all. I have created a snippet of javascript code that will do the following: 1. read the window URL 2. depending on the window URL, a word will be placed into a hidden form field. 3. Person submits form...etc., etc. Here is what I have. Let's say that I have a single landing page with a simple form on it. I would like to reference the referred URL by pulling a part of the window URL into a hidden field of the form. Let's say the three URLs a http://www.whatever.com/index.htm?id=ref1 http://www.whatever.com/index.htm?id=ref2 http://www.whatever.com/index.htm?id=ref3 I have created a javascript that takes the exact URL and check for equality. If the URL is equal, it will place the corresponding id into the hidden form field. See my code below. Code: <script type="text/javascript">
var lead_source = window.location.href
{
if (lead_source == "http://www.whatever.com/index.htm?id=ref1")
{
document.writeln("<input type=hidden name='lead_source' id='lead_source' value='ref1'>");
}
else if (lead_source == "http://www.whatever.com/index.htm?id=ref2")
{
document.writeln("<input type=hidden name='lead_source' id='lead_source' value='ref2'>");
}
else if (lead_source == "http://www.whatever.com/index.htm?id=ref3")
{
document.writeln("<input type=hidden name='lead_source' id='lead_source' value='ref3'>");
}
}
</script>
What I am looking to do is modify the code to only look at the "id" variable, not the entire URL. That way, if I add any additional items to the URL I will not have to change the code. I guess I am looking for an extra step of parsing the URL...maybe. Thanks for your help I have been searching for a long time but have been unsuccessful on how to develop a drop down menu but have the menu items show in a list above the main nav. Not below. I really like the way this functions: http://www.sohtanaka.com/web-design/examples/toggle/ But I would like the item in the list to appear above the main nav so it animates up not down. Can anyone help me on how to alter this js code to perform this task? Here is the jQuery file link: http://code.jquery.com/jquery-latest.js I tried going through this js file but it very complex. Can anyone tell me what I need to change to have the animation roll up instead of down? Any help would be most appreciated. Greetings: On the click of a button, how would I delete a certain record in a database table, w/o refreshing the page? I am new to JS and don't even know where to start. Thanks in advance. I'm new to Javascript and having some issues, so I'll aplogize right off for what I know is likely a very simple problem. I have a script where I'm 1) reading in a text file 2)remove multiple spaces between values in the file, 3) load these values into an array 4) format a table from this array. The script returns the following error which I can't seem to resolve: (12, 8) Microsoft JScript runtime error: Object doesn't support this property or method Code: var ForReading = 1
strHostname="XX.XX.XX.XX";
objFSO = new ActiveXObject("Scripting.FileSystemObject")
objTextFile = objFSO.OpenTextFile ("E:\Integrity.txt", ForReading)
strDelTab = "<table border='1'><tr><td style='background-color:#c5d1db; text-align:center'>Server</td><td style='background-color:#c5d1db; text-align:center'>User</td><td style='background-color:#c5d1db; text-align:center'>Group</td><td style='background-color:#c5d1db; text-align:center'>User</td></tr>";
while (!objTextFile.eof)
{
strDeletes = objTextFile.readln();
strDeletes = Replace(strDeletes, " "/g, " ");
arrDeletes = Split(strDeletes, " ");
strDelTab += "<tr><td>" + arrDeletes[0] + "</td>" ;
strDelTab += "<td>" + arrDeletes[1] + "</td>";
strDelTab += "<td>" + arrDeletes[2] + "</td></tr>";
}
strDelTab += "</table>";
objTextFile.close();
Wscript.Echo (strDelTab);
Any assistance would be appreciated. Thanks Hello everyone! So, what it does: You can successfully drag something anywhere, but when you click it again, it resets to its original position (I don't know why), and when you try to drag it again, as soon as your cursor touches the object it disappears (I don't know why). I'm hoping someone can tell me why it is happening and how to fix it! Code: // JavaScript Document
var posX;
var posY;
var element;
function drag(event) {
element = document.getElementById("square");
posX = event.clientX;
posY = event.clientY;
element.addEventListener("mousemove", move, false);
}
function move(event) {
if (typeof(document.getElementById("square").mouseup) == "undefined")
element.addEventListener("mouseup", drop, false);
//Prevents redundantly adding the same event handler repeatedly
element.style.left = event.clientX - posX + "px";
element.style.top = event.clientY - posY + "px";
}
function drop() {
element.removeEventListener("mousemove", move, false);
element.removeEventListener("mouseup", drop, false);
}
the html is a simple (position is set to relative): <p id="square" onmousedown="drag(event)">meep</p> Lastly, and most importantly, thank you all for your time =] EDIT: This is the first time I've written javascript code and would like to learn the basics, which is why I am not using a library. I'm looking at creating a set of customer contact forms. I'd like to be able to have a main contact page where the visitor fills in general info like name and such, and then clicks a link to get into the specific area form he needs. I've done VB programming and used it to manipulate an IE document object. I've explored JavaScript and managed to code one or two IF functions. I'm wondering if I open the linked form in a new window, can I use JS to pull the info from the first window and insert it into the new window? Seems like it would be easy, but I don't know so I'm asking. (MasterofFollies gave me a PHP solution in http://www.codingforums.com/showthread.php?t=187819 , but I havene't had any time at all to give myself to understanding it!) Ed Hello there, CodingForums.com! I'm a newbie to Javascript, HTML, XHTML, CSS-- and oh god, everything, so please bear with me! I have come to understand that to get any better, I'll need support. I hope you guys (and gals) can assist! Here is my issue: I'm currently trying to develop a first-draft calculator that will allow me to calculate some values for work and the way I want it requires me to do it with a pair of drop-downs. Take a look at it he http://www.projectvoid.co.uk/ I would like to select the first drop-down, on the left-hand side (Current Lighting Products -> Type of Lamp) and for the right-hand side to copy it's selected value (Energy Efficient Products -> Type of Lamp). Furthermore, it shouldn't interfere with the fact that I'm also using those values with my dependent drop-down, below (Wattage). The only piece of code I've found that might help is this: Code: function setSelect(name1, name2)
{
var select1 = document.forms.formname.elements[name1];
var select2 = document.forms.formname.elements[name2];
select1.selectedIndex = select2.selectedIndex;
}
I am also unsure how to utilize it. I look forward to your aid! Thank you in advance. Okay, I'm having some trouble getting my head around how to do this.. Code: <select> <option value="A">A</option> <option value="B">B</option> <option value="C">C</option> </select> <select> <option value="Rhino">Rhino</option> <option value="Bird">Bird</option> <option value="Rooster">Rooster</option> </select> <select> <option value="0202A">Rhino - Text</option> <option value="0203A">Rhino - Text2</option> <option value="0204A">Bird - Text1</option> <option value="0205A">Bird - Text2</option> <option value="0202B">Rhino - Text</option> <option value="0204B">Rhino - Text2</option> <option value="0204C">Rooster - Text1</option> <option value="0205C">Rooster - Text2</option> <option value="0206C">Rooster - Text3</option> </select> So say we had those three drop-downs. I'm looking to make it so that second drop-down only has options corresponding to a relationship between the first and the third drop-down. Example - if you select A in the first drop-down you only see Rhino and Bird in the second drop-down. If you select B you will only see Rhino in the second drop-down. Lastly, if you select C you will only see Rooster in the second drop-down. Just can't figure this out. >.< I know how to edit the CSS, and minute parts of the JavaScript code (for example; speed of the drop). The problem is, I had a massive amount of help making the Javascript side of the menu, and do not know how to edit it... I want the rules to still apply, where only one can be expanded at a time (one of the first drops, and then only one of the sub-drops). I noticed in the code, I can edit it so there can be more than one drop, but that would mean, the whole menu could be expanded Also, I want my sub-drops. to have different span colour than the main drop. but trhe links and such, (everything else about it) can be the same.... My live demo is here! Thank you for any help and/or advice in advance, Best Regards, Tim |
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