89 lines
2.2 KiB
JavaScript
89 lines
2.2 KiB
JavaScript
var request = null;
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function getForm(form) {
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var params = 'ajax=true';
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var count = form.elements.length;
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for (var i = 0; i < count; i++) {
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element = form.elements[i];
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switch (element.type) {
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case 'hidden':
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case 'password':
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case 'text':
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case 'textarea':
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// Check if it's required
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if (element.title == 'required' && element.value == '') {
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alert('Error: The ' + element.name.replace('_', ' ') + ' field is required.');
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element.focus();
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return false;
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}
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params += '&' + element.name + '=' + encodeURI(element.value);
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break;
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case 'checkbox':
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case 'radio':
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if (element.checked) {
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params += '&' + element.name + '=' + encodeURI(element.value);
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}
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break;
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case 'select-one':
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params += '&' + element.name + "=" + element.options[element.selectedIndex].value;
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break;
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}
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}
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return params;
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}
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function createRequest() {
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try {
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request = new XMLHttpRequest();
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} catch (trymicrosoft) {
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try {
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request = new ActiveXObject("Msxml12.XMLHTTP");
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} catch (othermicrosoft) {
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try {
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request = new ActiveXObject("Microsoft.XMLHTTP");
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} catch (failed) {
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request = null;
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}
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}
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}
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if (request == null) {
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alert("Error creating request object!");
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}
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}
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function ajaxSubmit(form) {
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var params = '';
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if (params = getForm(form)) {
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createRequest();
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request.open(form.method, form.action, true);
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request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
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request.setRequestHeader("Content-length", params.length);
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request.setRequestHeader("Connection", "close");
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request.onreadystatechange = function() {
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if (request.readyState == 4 && request.status == 200) {
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var responseObject = eval( "(" + request.responseText + ")" );
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var responseElement = document.createElement('div');
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responseElement.className = responseObject.type;
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var responseMessage = document.createTextNode(responseObject.message);
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responseElement.appendChild(responseMessage);
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form.insertBefore(responseElement, form.firstChild);
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}
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}
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request.send(params);
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}
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}
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