var currentPage = 'about';

function changePage(page) {
	currentPage = page;
	
	$('mail').style.display = 'none';
	
	$('about').style.display = 'none';
	$('aboutButton').style.cursor = 'pointer';
	$('aboutButton').style.width = '179px';
	$('aboutButton').style.background = 'url(IMG/contentButton.png)';
	
	$('services').style.display = 'none';
	$('servicesButton').style.cursor = 'pointer';
	$('servicesButton').style.width = '179px';
	$('servicesButton').style.background = 'url(IMG/contentButton.png)';
	
	$('quote').style.display = 'none';
	$('quoteButton').style.cursor = 'pointer';
	$('quoteButton').style.width = '179px';
	$('quoteButton').style.background = 'url(IMG/contentButton.png)';
	
	$('entertainment').style.display = 'none';
	$('entertainmentButton').style.cursor = 'pointer';
	$('entertainmentButton').style.width = '179px';
	$('entertainmentButton').style.background = 'url(IMG/contentButton.png)';
	
	$('tracking').style.display = 'none';
	$('trackingButton').style.cursor = 'pointer';
	$('trackingButton').style.width = '179px';
	$('trackingButton').style.background = 'url(IMG/contentButton.png)';
	
	$('contact').style.display = 'none';
	$('contactButton').style.cursor = 'pointer';
	$('contactButton').style.width = '179px';
	$('contactButton').style.background = 'url(IMG/contentButton.png)';
	
	$(page).style.display = '';
	$(page + 'Button').style.cursor = 'default';
	$(page + 'Button').style.width = '189px';
	$(page + 'Button').style.background = 'url(IMG/contentButtonSelected.png)';
	
	var browser=navigator.appName;
	var b_version=navigator.appVersion;
	var version=parseFloat(b_version);
	
	if((browser == "Microsoft Internet Explorer") && (version <= 6)) {
		$('aboutButton').style.marginLeft = '5px';
		$('servicesButton').style.marginLeft = '5px';
		$('quoteButton').style.marginLeft = '5px';
		$('entertainmentButton').style.marginLeft = '5px';
		$('trackingButton').style.marginLeft = '5px';
		$('contactButton').style.marginLeft = '5px';
		
		$(page + 'Button').style.width = '179px';
		$(page + 'Button').style.marginLeft = '0px';
	}
}

function showHideFormFields() {
	if(($('freightCheckbox').checked == true) && ($('customsCheckbox').checked == true)) {	
		$('either1').style.visibility = 'visible';
		$('either2').style.visibility = 'visible';
		$('either3').style.visibility = 'visible';
		$('either4').style.visibility = 'visible';
		$('either5').style.visibility = 'visible';
		$('either6').style.visibility = 'visible';
		$('either7').style.visibility = 'visible';
		$('either8').style.visibility = 'visible';
		
		$('customs1').style.visibility = 'visible';
		
		$('freight1').style.visibility = 'visible';
		$('freight2').style.visibility = 'visible';
		$('freight3').style.visibility = 'visible';
		$('freight4').style.visibility = 'visible';
	} else if(($('freightCheckbox').checked == true) && ($('customsCheckbox').checked == false)) {
		$('either1').style.visibility = 'visible';
		$('either2').style.visibility = 'visible';
		$('either3').style.visibility = 'visible';
		$('either4').style.visibility = 'visible';
		$('either5').style.visibility = 'visible';
		$('either6').style.visibility = 'visible';
		$('either7').style.visibility = 'visible';
		$('either8').style.visibility = 'visible';
		
		$('customs1').style.visibility = 'hidden';
		
		$('freight1').style.visibility = 'visible';
		$('freight2').style.visibility = 'visible';
		$('freight3').style.visibility = 'visible';
		$('freight4').style.visibility = 'visible';
	} else if(($('freightCheckbox').checked == false) && ($('customsCheckbox').checked == true)) {
		$('either1').style.visibility = 'visible';
		$('either2').style.visibility = 'visible';
		$('either3').style.visibility = 'visible';
		$('either4').style.visibility = 'visible';
		$('either5').style.visibility = 'visible';
		$('either6').style.visibility = 'visible';
		$('either7').style.visibility = 'visible';
		$('either8').style.visibility = 'visible';
		
		$('customs1').style.visibility = 'visible';
		
		$('freight1').style.visibility = 'hidden';
		$('freight2').style.visibility = 'hidden';
		$('freight3').style.visibility = 'hidden';
		$('freight4').style.visibility = 'hidden';
	} else {
		$('either1').style.visibility = 'hidden';
		$('either2').style.visibility = 'hidden';
		$('either3').style.visibility = 'hidden';
		$('either4').style.visibility = 'hidden';
		$('either5').style.visibility = 'hidden';
		$('either6').style.visibility = 'hidden';
		$('either7').style.visibility = 'hidden';
		$('either8').style.visibility = 'hidden';
		
		$('customs1').style.visibility = 'hidden';
		
		$('freight1').style.visibility = 'hidden';
		$('freight2').style.visibility = 'hidden';
		$('freight3').style.visibility = 'hidden';
		$('freight4').style.visibility = 'hidden';
	}
}

function mouseOverNavigation(page) {
	var browser=navigator.appName;
	var b_version=navigator.appVersion;
	var version=parseFloat(b_version);
	
	if((browser == "Microsoft Internet Explorer") && (version <= 6)) {
		$(page + 'Button').style.width = '179px';
		$(page + 'Button').style.marginLeft = '0px';
	}
}

function mouseOutNavigation(page) {
	if(currentPage != page) {
   		var browser=navigator.appName;
		var b_version=navigator.appVersion;
		var version=parseFloat(b_version);
		
		if((browser == "Microsoft Internet Explorer") && (version <= 6)) {
			$(page + 'Button').style.width = '179px';
			$(page + 'Button').style.marginLeft = '5px';
		}
	}
}

function enableKeyPress(e) {
	var key;      
	if(window.event)
		key = window.event.keyCode; //IE
	else
		key = e.which; //firefox      
	if(key == 13)
		getTrackingResultAJAX()
	return (key != 13);
}

function getTrackingResultAJAX() {
	var cargo = $('cargo').value;
	var transaction = $('transaction').value;
	
	var url = 'PHP/trackingQueryResult.php';
	var params = '?cargo=' + cargo + "&transaction=" + transaction;

	var ajax = new Ajax.Updater('trackingResults', url, {method: 'get', parameters: params});
}