//--------------------------------------------------
    // General Notes
    //--------------------------------------------------

	/* classNum is declared in the <head/> to enable loading of saved classes */
	/* sectionsOfClass is declared in the <head/> to enable loading of saved sections */


    //--------------------------------------------------
    // Validation Functions
    //--------------------------------------------------      

	//--------------------------------------------------
	// Default Error Message
	//--------------------------------------------------
	jQuery.each(jQuery.validator.messages, function(i) {
		jQuery.validator.messages[i] = "<p class=\"error\">Please fill the field</p>";
	});

	//--------------------------------------------------
	// Time Selection Validation
	//--------------------------------------------------
	jQuery.validator.addMethod( 
		"selectNone", 
		function(value, element) { 
			if (element.value == "none") { 
				return false; 
			} 
			else return true; 
		}, 
		"<p class=\"error\">Please select a time</p>" 
	); 
	
	//--------------------------------------------------
	// Days of Week validation
	//--------------------------------------------------
	jQuery.validator.addMethod( 
		"daysRequired", 
		function(value, element) { 
			var checkedCount = 0;
			jQuery(element).parent().parent().children().children('.daysRequired:checked').each( function() {
				checkedCount++;
			});
			if (checkedCount == 0) { 
				return false; 
			} 
			else return true; 
		}, 
		"<p class=\"error\">Select a day!</p>" 
	); 

	//--------------------------------------------------
	// Add validation rules
	//--------------------------------------------------
	jQuery.validator.addClassRules("selectRequired", {
		selectNone: true
	});
	jQuery.validator.addClassRules("daysRequired", {
		daysRequired: true
	});



    //--------------------------------------------------
    // General Input Functions
    //--------------------------------------------------

        //--------------------------------------------------
        // Custom ID generator - @FIXME: un-abstract
        //--------------------------------------------------
	function customIds(name){
		return '<td class="sectionIdentifier center"><input type="text" size="1" class="required" name="' + name + '" /></td>';
	}

	//--------------------------------------------------
	// Returns the common inputs for each new section.
	//--------------------------------------------------
        function getCommonInputs(cnum){
		getCommonInputs(cnum,'','','','','','');
	}

	function getCommonInputs(cnum,name,synonym,stime,etime,days,prof) {
		var snum = sectionsOfClass[cnum];

		var result = '<tr class="section class' + cnum + '"><td class="none"></td>';
	        result = result + customIds('postData[' + cnum + '][' + snum + '][letter]');

		result = result + '<td><select class="selectRequired" name="postData[' + cnum + '][' + snum + '][start]"><option value="none"></option>\
				<option value="700">7:00 am</option><option value="730">7:30 am</option>\
				<option value="800">8:00 am</option><option value="830">8:30 am</option>\
				<option value="900">9:00 am</option><option value="930">9:30 am</option>\
				<option value="1000">10:00 am</option><option value="1030">10:30 am</option>\
				<option value="1100">11:00 am</option><option value="1130">11:30 am</option>\
				<option value="1200">12:00 pm</option><option value="1230">12:30 pm</option>\
				<option value="1300">1:00 pm</option><option value="1330">1:30 pm</option>\
				<option value="1400">2:00 pm</option><option value="1430">2:30 pm</option>\
				<option value="1500">3:00 pm</option><option value="1530">3:30 pm</option>\
				<option value="1600">4:00 pm</option><option value="1630">4:30 pm</option>\
				<option value="1700">5:00 pm</option><option value="1730">5:30 pm</option>\
				<option value="1800">6:00 pm</option><option value="1830">6:30 pm</option>\
				<option value="1900">7:00 pm</option><option value="1930">7:30 pm</option>\
				<option value="2000">8:00 pm</option><option value="2030">8:30 pm</option>\
				<option value="2100">9:00 pm</option></select></td>\
			<td><select class="selectRequired" name="postData[' + cnum + '][' + snum + '][end]"><option value="none"></option>\
				<option value="720">7:20 am</option><option value="750">7:50 am</option>\
				<option value="820">8:20 am</option><option value="850">8:50 am</option>\
				<option value="920">9:20 am</option><option value="950">9:50 am</option>\
				<option value="1020">10:20 am</option><option value="1050">10:50 am</option>\
				<option value="1120">11:20 am</option><option value="1150">11:50 am</option>\
				<option value="1220">12:20 pm</option><option value="1250">12:50 pm</option>\
				<option value="1320">1:20 pm</option><option value="1350">1:50 pm</option>\
				<option value="1420">2:20 pm</option><option value="1450">2:50 pm</option>\
				<option value="1520">3:20 pm</option><option value="1550">3:50 pm</option>\
				<option value="1620">4:20 pm</option><option value="1650">4:50 pm</option>\
				<option value="1720">5:20 pm</option><option value="1750">5:50 pm</option>\
				<option value="1820">6:20 pm</option><option value="1850">6:50 pm</option>\
				<option value="1920">7:20 pm</option><option value="1950">7:50 pm</option>\
				<option value="2020">8:20 pm</option><option value="2050">8:50 pm</option>\
				<option value="2120">9:20 pm</option></select></td>\
			<td class="cbrow"><input type="checkbox" class="daysRequired" name="postData[' + cnum + '][' + snum + '][days][0]" value="1" /></td>\
			<td class="cbrow"><input type="checkbox" class="daysRequired" name="postData[' + cnum + '][' + snum + '][days][1]" value="1" /></td>\
			<td class="cbrow"><input type="checkbox" class="daysRequired" name="postData[' + cnum + '][' + snum + '][days][2]" value="1" /></td>\
			<td class="cbrow"><input type="checkbox" class="daysRequired" name="postData[' + cnum + '][' + snum + '][days][3]" value="1" /></td>\
			<td class="cbrow"><input type="checkbox" class="daysRequired" name="postData[' + cnum + '][' + snum + '][days][4]" value="1" /></td>';
		result = result + '<td><div class="deleteSection"><input type="button" value="x" class="gray" /></div></td><td></td></tr>';
		return result;
	}

        //--------------------------------------------------
        // Add a section to a class
        //--------------------------------------------------
        function add_section(cnum) {
		jQuery('.pclass'+cnum).after(getCommonInputs(cnum));
        }
	function add_section(cnum,name,synonym,stime,etime,days,prof) {
		 jQuery('.pclass'+cnum).after(getCommonInputs(cnum,name,synonym,stime,etime,days,prof));
	}

	//--------------------------------------------------
	// Adds a new class to the input.
	//--------------------------------------------------
	function add_class(){
		sectionsOfClass[classNum] = 0; // Initialize at 0
		jQuery('#jsrows').append('<tr title="' + classNum + '" class="class class' + classNum + ' pclass' + classNum + '"><td><input type="text" class="className required defText className'+classNum+'" title="Class Name" name="postData[' + classNum + '][name]" /></td><td colspan="8"></td><td class="tdInput"><div class="addSection"><input type="button" value="Add section" class="gray" /></div></td><td class="tdInput"><div class="deleteClass"><input type="button" value="Remove" class="gray" /></div></td></tr>');
		jQuery('.className' + classNum).autocomplete({
			source: "auto.php"
		});
		classNum++;
	};


    //--------------------------------------------------
    // Items bound to pageload/events
    //--------------------------------------------------
    jQuery(document).ready(function() {

	//--------------------------------------------------
	// Validates the form (pre-submission check)
	//--------------------------------------------------
		jQuery('#scheduleForm').validate({
			debug: false,
		}); 

	//--------------------------------------------------
	// Bind the class-adding method
	//--------------------------------------------------
	jQuery('#addclass').click(function() {
		add_class();
	});

	//--------------------------------------------------
	// Deletes the selected class from input
	//--------------------------------------------------
	jQuery('.deleteClass').live('click', function() {
		if(confirm('Delete class and all sections of this class?')) {
			jQuery('.class'+ jQuery(this).parent().parent().attr("title")).remove();
		}
	});

	//--------------------------------------------------
	// Deletes the selected section from the input
	//--------------------------------------------------
	jQuery('.deleteSection').live('click', function() {
		sectionsOfClass[jQuery(this).parent().parent().attr("title")]--; // Decreases the number of classes
		jQuery(this).parent().parent().remove();
	});

	//--------------------------------------------------
	// Bind the section-adding method
	//--------------------------------------------------
	jQuery('.addSection').live('click', function() {
		add_section(jQuery(this).parent().parent().attr("title"), sectionsOfClass[jQuery(this).parent().parent().attr("title")]);
		sectionsOfClass[jQuery(this).parent().parent().attr("title")]++; // Increases sectionsOfClass[classNum]
	});

	//--------------------------------------------------
	// Default text
	//--------------------------------------------------
	jQuery(".defText").focus(function(srcc)
	{
	    if (jQuery(this).val() == jQuery(this)[0].title)
	    {
		jQuery(this).removeClass("defaultTextActive");
		jQuery(this).val("");
	    }
	});
	jQuery(".defText").blur(function()
	{
	    if (jQuery(this).val() == "")
	    {
		jQuery(this).addClass("defaultTextActive");
		jQuery(this).val($(this)[0].title);
	    }
	});
	jQuery(".defText").blur();

	//--------------------------------------------------
	// Show/Hide advanced items
	//--------------------------------------------------
	jQuery('.advanced').hide();    
	jQuery('#showadvanced').click( function() {
		jQuery('#showadvanced').hide();
		jQuery('.advanced').slideToggle();
	});

        //--------------------------------------------------
        // Add initial class
        //--------------------------------------------------
	add_class();

});