// Check that discount code box isn't empty
function checkDiscountBox() {
	if (document.discount_code_form.discount_code.value=="") {
		alert('Please enter a discount code.');
		return false;
	} else {
		return true;
	}
}

// Show searching message while search is being performed
function showSearchingText() {
	document.quote_search_form.product_search_button.disabled = true;
	document.quote_search_form.product_search_button.value = "searching...";
	//document.getElementById("product_search_content").innerHTML = "Your search is being performed...";
}

// Enable search button after a state is chosen
function checkState() {
	if (document.quote_search_form.state.value=="-") {
		document.quote_search_form.product_search_button.disabled = true;
		document.quote_search_form.state.style.color = "#FF0000";
	} else {
		document.quote_search_form.product_search_button.disabled = false;
		document.quote_search_form.state.style.color = "#000000";
	}
}

// Check tax checkbox status
function checkBox(name) {
	document.paypal_form.action = 'index.php?page=view-quote#total';
}

// AJAX function to update quote with new quantity for specified product
function updateQty(product_id) {
	var quantity = document["add"+product_id].quantity.value;
	var isNumber = parseFloat(quantity);
	var notNumber = false;
	
	if(isNaN(isNumber)) {
		var notNumber = true;
	}
	
	if (quantity!="" && notNumber!=true) {
		document.getElementById("status"+product_id).style.display = "block";
		document.getElementById("status"+product_id).innerHTML = "adding...";
					
		theURL = "processor.php?id=" + product_id + "&qty=" + quantity + "&key=2ef8ca536def553d035bf0c8578303f1";
		
		if (window.XMLHttpRequest) {
			var http_request = new XMLHttpRequest();
		} else if (window.ActiveXObject) {
			var http_request = new ActiveXObject("Microsoft.XMLHTTP");
		}
			
		http_request.onreadystatechange = function() {
			if (http_request.readyState==4) {	
				if (http_request.responseText!="") {
					document.getElementById("status"+product_id).style.display = "block";
					document.getElementById("status"+product_id).innerHTML = http_request.responseText + " of these are in your eQuote";
				}
			}
		}
			
		http_request.open('GET',theURL,true);
		http_request.send(null);
	}
}

// Change status of product search form options
function changeStatus(type) {
	element_array = Array("grade_any","grade2","grade3","grade4","grade5","grade6","grade7","grade8","grade9","grade10","grade11","grade12","grade_teacher");
	switch(type) {
		case "any":
			document.quote_search_form.grade_any.checked = true;
			for (a=1; a<element_array.length; a++) {
				current_element = element_array[a];
				document.quote_search_form[current_element].checked = false;
			}
		break;
		default:
			if (document.quote_search_form.grade_any.checked) {
				document.quote_search_form.grade_any.checked = false;
				/*
				for (a=1; a<element_array.length; a++) {
					current_element = element_array[a];
					document.quote_search_form[current_element].disabled = true;
					document.quote_search_form[current_element].checked = false;
				}
				*/
			} else {
				for (a=1; a<element_array.length; a++) {
					current_element = element_array[a];
					document.quote_search_form[current_element].disabled = false;
				}
			}
			
			counter = 0;
			for (a=1; a<element_array.length; a++) {
				current_element = element_array[a];
				if (document.quote_search_form[current_element].checked) {
						
				} else {
					counter++;	
				}
			}
			if (counter==(element_array.length-1)) {
				document.quote_search_form.grade_any.checked = true;	
			}
		break;
	}
}

// Navigation functions
function hideAllSubNav() {
	for (a=0; a<all_ids_array.length; a++) {
		current_id = all_ids_array[a];
		document.getElementById(current_id).style.display = "none";
	}
}
	
function showSubNav(id_array) {
	hideAllSubNav();
	for (a=0; a<id_array.length; a++) {
		current_id = id_array[a];
		document.getElementById(current_id).style.display = "block";
	}
}