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220 lines
13 KiB
220 lines
13 KiB
/*jQuery Form to Form Wizard (Initial: Oct 1st, 2010)
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* This notice must stay intact for usage
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* Author: Dynamic Drive at http://www.dynamicdrive.com/
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* Visit http://www.dynamicdrive.com/ for full source code
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*/
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//Oct 21st, 2010: Script updated to v1.1, which adds basic form validation functionality, triggered each time the user goes from one page to the next, or tries to submit the form.
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//jQuery.noConflict()
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function formtowizard(options){
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this.setting = jQuery.extend({persistsection: false, revealfx: ['slide', 500], oninit: function () {
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}, onpagechangestart: function () {
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}}, options);
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this.currentsection = -1;
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this.init(this.setting)
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}
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formtowizard.prototype = {
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createfieldsets: function ($theform, arr) { //reserved function for future version (dynamically wraps form elements with a fieldset element)
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$theform.find('fieldset.sectionwrap').removeClass('sectionwrap'); //make sure no fieldsets carry 'sectionwrap' before proceeding
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var $startelement = $theform.find(':first-child'); //reference first element inside form
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for (var i = 0; i < arr.length; i++) { //loop thru "break" elements
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var $fieldsetelements = $startelement.nextUntil('#' + arr[i].breakafter + ', *[name=' + arr[i].breakafter + ']').andSelf(); //reference all elements from start element to break element (nextUntil() is jQuery 1.4 function)
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$fieldsetelements.add($fieldsetelements.next()).wrapAll('<fieldset class="sectionwrap" />'); //wrap these elements with fieldset element
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$startelement = $theform.find('fieldset.sectionwrap').eq(i).prepend('<legend class="legendStep">' + arr[i].legend + '</legend>').next(); //increment startelement to begin at the end of the just inserted fieldset element
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}
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},
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loadsection: function (rawi, bypasshooks) {
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var thiswizard = this;
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//doload Boolean checks to see whether to load next section (true if bypasshooks param is true or onpagechangestart() event handler doesn't return false)
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var doload = bypasshooks || this.setting.onpagechangestart(jQuery, this.currentsection, this.sections.$sections.eq(this.currentsection));
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doload = (doload === false) ? false : true; //unless doload is explicitly false, set to true
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if (!bypasshooks && this.setting.validate) {
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var outcome = this.validate(this.currentsection);
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if (outcome === false)
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doload = false
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}
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var i = (rawi == "prev") ? this.currentsection - 1 : (rawi == "next") ? this.currentsection + 1 : parseInt(rawi); //get index of next section to show
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i = (i < 0) ? this.sections.count - 1 : (i > this.sections.count - 1) ? 0 : i; //make sure i doesn't exceed min/max limit
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if (i < this.sections.count && doload) { //if next section to show isn't the same as the current section shown
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this.$thesteps.eq(this.currentsection).addClass('disabledstep').end().eq(i).removeClass('disabledstep'); //dull current "step" text then highlight next "step" text
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if (this.setting.revealfx[0] == "slide") {
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this.sections.$sections.css("visibility", "visible");
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this.sections.$outerwrapper.stop().animate({height: this.sections.$sections.eq(i).outerHeight()}, this.setting.revealfx[1]); //animate fieldset wrapper's height to accomodate next section's height
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this.sections.$innerwrapper.stop().animate({left: -i * this.maxfieldsetwidth}, this.setting.revealfx[1], function () { //slide next section into view
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thiswizard.sections.$sections.each(function (thissec) {
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if (thissec != i) //hide fieldset sections currently not in veiw, so tabbing doesn't go to elements within them (and mess up layout)
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thiswizard.sections.$sections.eq(thissec).css("visibility", "hidden")
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})
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})
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}
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else if (this.setting.revealfx[0] == "fade") { //if fx is "fade"
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this.sections.$sections.eq(this.currentsection).hide().end().eq(i).fadeIn(this.setting.revealfx[1], function () {
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if (document.all && this.style && this.style.removeAttribute)
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this.style.removeAttribute('filter'); //fix IE clearType problem
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})
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}
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else {
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this.sections.$sections.eq(this.currentsection).hide().end().eq(i).show()
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}
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this.paginatediv.$status.text("Page " + (i + 1) + " of " + this.sections.count); //update current page status text
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this.paginatediv.$navlinks.css('visibility', 'visible');
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if (i == 0) //hide "prev" link
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this.paginatediv.$navlinks.eq(0).css('visibility', 'hidden');
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else if (i == this.sections.count - 1) //hide "next" link
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this.paginatediv.$navlinks.eq(1).css('visibility', 'hidden');
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if (this.setting.persistsection) //enable persistence?
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formtowizard.routines.setCookie(this.setting.formid + "_persist", i);
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this.currentsection = i;
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if (i === 0) {
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setTimeout(function () {
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$('#nameToSearch').focus();
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}, 250);
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}
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}
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},
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addvalidatefields: function () {
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var $ = jQuery, setting = this.setting, theform = this.$theform.get(0), validatefields = [];
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var validatefields = setting.validate; //array of form element ids to validate
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for (var i = 0; i < validatefields.length; i++) {
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var el = theform.elements[validatefields[i]]; //reference form element
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if (el) { //if element is defined
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var $section = $(el).parents('fieldset.sectionwrap:eq(0)'); //find fieldset.sectionwrap this form element belongs to
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if ($section.length == 1) { //if element is within a fieldset.sectionwrap element
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$section.data('elements').push(el); //cache this element inside corresponding section
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}
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}
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}
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},
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validate: function (section) {
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var elements = this.sections.$sections.eq(section).data('elements'); //reference elements within this section that should be validated
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var validated = true, invalidtext = ["Please fill out the following fields:\n"];
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function invalidate(el) {
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validated = false;
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invalidtext.push("- " + (el.id || el.name))
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}
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for (var i = 0; i < elements.length; i++) {
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if (/(text)/.test(elements[i].type) && elements[i].value == "") { //text and textarea elements
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invalidate(elements[i])
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}
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else if (/(select)/.test(elements[i].type) && (elements[i].selectedIndex == -1 || elements[i].options[elements[i].selectedIndex].text == "")) { //select elements
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invalidate(elements[i])
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}
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else if (elements[i].type == undefined && elements[i].length > 0) { //radio and checkbox elements
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var onechecked = false;
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for (var r = 0; r < elements[i].length; r++) {
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if (elements[i][r].checked == true) {
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onechecked = true;
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break
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}
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}
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if (!onechecked) {
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invalidate(elements[i][0])
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}
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}
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}
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if (!validated)
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alert(invalidtext.join('\n'));
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return validated
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},
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init: function (setting) {
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var thiswizard = this;
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jQuery(function ($) { //on document.ready
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var $theform = $('#' + setting.formid);
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if ($theform.length == 0) //if form with specified ID doesn't exist, try name attribute instead
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$theform = $('form[name=' + setting.formid + ']');
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if (setting.manualfieldsets && setting.manualfieldsets.length > 0)
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thiswizard.createfieldsets($theform, setting.manualfieldsets);
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var $stepsguide = $('<div class="stepsguide" />'); //create Steps Container to house the "steps" text
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var $sections = $theform.find('fieldset.sectionwrap').hide(); //find all fieldset elements within form and hide them initially
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if (setting.revealfx[0] == "slide") { //create outer DIV that will house all the fieldset.sectionwrap elements
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$sectionswrapper = $('<div style="position:relative;overflow:hidden;"></div>').insertBefore($sections.eq(0)); //add DIV above the first fieldset.sectionwrap element
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$sectionswrapper_inner = $('<div style="position:absolute;left:0;top:0;"></div>'); //create inner DIV of $sectionswrapper that will scroll to reveal a fieldset element
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}
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var maxfieldsetwidth = $sections.eq(0).outerWidth(); //variable to get width of widest fieldset.sectionwrap
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$sections.slice(1).each(function (i) { //loop through $sections (starting from 2nd one)
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maxfieldsetwidth = Math.max($(this).outerWidth(), maxfieldsetwidth)
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});
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maxfieldsetwidth += 2; //add 2px to final width to reveal fieldset border (if not removed via CSS)
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thiswizard.maxfieldsetwidth = maxfieldsetwidth;
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$sections.each(function (i) { //loop through $sections again
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var $section = $(this);
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if (setting.revealfx[0] == "slide") {
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$section.data('page', i).css({position: 'absolute', top: 0, left: maxfieldsetwidth * i}).appendTo($sectionswrapper_inner); //set fieldset position to "absolute" and move it to inside sectionswrapper_inner DIV
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}
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$section.data('elements', []); //empty array to contain elements within this section that should be validated for data (applicable only if validate option is defined)
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//create each "step" DIV and add it to main Steps Container:
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var $thestep = $('<div class="step disabledstep" />').data('section', i).html('Step ' + (i + 1) + '<div class="smalltext">' + $section.find('legend:eq(0)').text() + '<p></p></div>').appendTo($stepsguide);
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$thestep.click(function () { //assign behavior to each step div
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thiswizard.loadsection($(this).data('section'))
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})
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});
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if (setting.revealfx[0] == "slide") {
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$sectionswrapper.width(maxfieldsetwidth); //set fieldset wrapper to width of widest fieldset
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$sectionswrapper.append($sectionswrapper_inner); //add $sectionswrapper_inner as a child of $sectionswrapper
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}
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$theform.prepend($stepsguide); //add $thesteps div to the beginning of the form
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//$stepsguide.insertBefore($sectionswrapper) //add Steps Container before sectionswrapper container
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var $thesteps = $stepsguide.find('div.step');
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//create pagination DIV and add it to end of form:
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var $paginatediv = $('<div class="formpaginate" style="overflow:hidden;"><span class="prev" style="float:left">Prev</span> <span class="status">Step 1 of </span> <span class="next" style="float:right">Next</span></div>');
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$theform.append($paginatediv);
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thiswizard.$theform = $theform;
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if (setting.revealfx[0] == "slide") {
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thiswizard.sections = {$outerwrapper: $sectionswrapper, $innerwrapper: $sectionswrapper_inner, $sections: $sections, count: $sections.length}; //remember various parts of section container
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thiswizard.sections.$sections.show()
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}
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else {
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thiswizard.sections = {$sections: $sections, count: $sections.length}; //remember various parts of section container
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}
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thiswizard.$thesteps = $thesteps; //remember this ref
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thiswizard.paginatediv = {$main: $paginatediv, $navlinks: $paginatediv.find('span.prev, span.next'), $status: $paginatediv.find('span.status')}; //remember various parts of pagination DIV
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thiswizard.paginatediv.$main.click(function (e) { //assign behavior to pagination buttons
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if (/(prev)|(next)/.test(e.target.className))
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thiswizard.loadsection(e.target.className)
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});
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var i = (setting.persistsection) ? formtowizard.routines.getCookie(setting.formid + "_persist") : 0;
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thiswizard.loadsection(i || 0, true); //show the first section
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thiswizard.setting.oninit($, i, $sections.eq(i)); //call oninit event handler
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if (setting.validate) { //if validate array defined
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thiswizard.addvalidatefields(); //seek out and cache form elements that should be validated
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thiswizard.$theform.submit(function () {
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var returnval = true;
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for (var i = 0; i < thiswizard.sections.count; i++) {
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if (!thiswizard.validate(i)) {
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thiswizard.loadsection(i, true);
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returnval = false;
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break
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}
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}
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return returnval; //allow or disallow form submission
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})
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}
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})
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}
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};
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formtowizard.routines = {
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getCookie: function (Name) {
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var re = new RegExp(Name + "=[^;]+", "i"); //construct RE to search for target name/value pair
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if (document.cookie.match(re)) //if cookie found
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return document.cookie.match(re)[0].split("=")[1]; //return its value
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return null
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},
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setCookie: function (name, value) {
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document.cookie = name + "=" + value + ";path=/"
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}
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};
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