add files

vendor/akdelf/akdmin/themes/office/pub/js/validate.js

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+// holds an instance of XMLHttpRequest
+var xmlHttp = createXmlHttpRequestObject();
+// holds the remote server address 
+var valid_script = server + "validateajax.php";
+// when set to true, display detailed error messages
+var showErrors = true;
+// initialize the validation requests cache 
+var cache = new Array();
+
+// creates an XMLHttpRequest instance
+function createXmlHttpRequestObject() 
+{
+  // will store the reference to the XMLHttpRequest object
+  var xmlHttp;
+  // this should work for all browsers except IE6 and older
+  try
+  {
+    // try to create XMLHttpRequest object
+    xmlHttp = new XMLHttpRequest();
+  }
+  catch(e)
+  {
+    // assume IE6 or older
+    var XmlHttpVersions = new Array("MSXML2.XMLHTTP.6.0",
+                                    "MSXML2.XMLHTTP.5.0",
+                                    "MSXML2.XMLHTTP.4.0",
+                                    "MSXML2.XMLHTTP.3.0",
+                                    "MSXML2.XMLHTTP",
+                                    "Microsoft.XMLHTTP");
+    // try every id until one works
+    for (var i=0; i<XmlHttpVersions.length && !xmlHttp; i++) 
+    {
+      try 
+      { 
+        // try to create XMLHttpRequest object
+        xmlHttp = new ActiveXObject(XmlHttpVersions[i]);
+      } 
+      catch (e) {} // ignore potential error
+    }
+  }
+  // return the created object or display an error message
+  if (!xmlHttp)
+    displayError("Error creating the XMLHttpRequest object.");
+  else 
+    return xmlHttp;
+}
+
+// function that displays an error message
+function displayError($message)
+{
+  // ignore errors if showErrors is false
+  if (showErrors)
+  {
+    // turn error displaying Off
+    showErrors = false;
+    // display error message
+ 
+    alert("Error encountered: \n" + $message);
+    // retry validation after 10 seconds
+    setTimeout("validate();", 10000);
+  }
+}
+
+// the function handles the validation for any form field
+function validate(inputValue, fieldID, type)
+{
+ // only continue if xmlHttp isn't void
+  if (xmlHttp)
+  {
+    // if we received non-null parameters, we add them to cache in the
+    // form of the query string to be sent to the server for validation
+    if (fieldID)
+    {
+      // encode values for safely adding them to an HTTP request query string
+      inputValue = encodeURIComponent(inputValue);
+      fieldID = encodeURIComponent(fieldID);
+      type = encodeURIComponent(type);
+      // add the values to the queue
+      cache.push("value=" + inputValue + "&fieldID=" + fieldID + "&type=" + type);
+    }
+    // try to connect to the server
+    try
+    {
+      // continue only if the XMLHttpRequest object isn't busy
+      // and the cache is not empty
+      if ((xmlHttp.readyState == 4 || xmlHttp.readyState == 0) 
+         && cache.length > 0)
+      {
+        // get a new set of parameters from the cache
+        var cacheEntry = cache.shift();
+        // make a server request to validate the extracted data
+       
+xmlHttp.open("POST", valid_script, true);
+        xmlHttp.setRequestHeader("Content-Type", 
+                                 "application/x-www-form-urlencoded");
+        xmlHttp.onreadystatechange = handleRequestStateChange;
+        xmlHttp.send(cacheEntry);
+      }
+    }
+    catch (e)
+    {
+      // display an error when failing to connect to the server
+      displayError(e.toString());
+    }
+  }
+}
+
+// function that handles the HTTP response
+function handleRequestStateChange() 
+{
+  // when readyState is 4, we read the server response
+  if (xmlHttp.readyState == 4) 
+  {
+    // continue only if HTTP status is "OK"
+    if (xmlHttp.status == 200) 
+    {
+      try
+      {
+        // read the response from the server
+        readResponse();
+      }
+      catch(e)
+ 
+      {
+        // display error message
+        displayError(e.toString());
+      }
+    }
+    else
+    {
+      // display error message
+      displayError(xmlHttp.statusText);
+    }
+  }
+}
+
+// read server's response 
+function readResponse()
+{
+  // retrieve the server's response 
+  var response = xmlHttp.responseText;
+  // server error?
+  //alert(response);
+  if (response.indexOf("ERRNO") >= 0 
+      || response.indexOf("error:") >= 0
+      || response.length == 0)
+    throw(response.length == 0 ? "Server error." : response);
+  // get response in XML format (assume the response is valid XML)
+  responseXml = xmlHttp.responseXML;
+  // get the document element
+  xmlDoc = responseXml.documentElement;
+  result = xmlDoc.getElementsByTagName("result")[0].firstChild.data;
+  fieldID = xmlDoc.getElementsByTagName("fieldid")[0].firstChild.data;
+  // find the HTML element that displays the error
+  message = document.getElementById(fieldID);
+  // show the error or hide the error
+   message.className = (result == "0") ? "error" : "hidden";
+  // call validate() again, in case there are values left in the cache
+  setTimeout("validate();", 500);
+}
+
+// sets focus on the first field of the form
+function setFocus()    
+{
+  document.getElementById("txtUsername").focus();
+}