/**
 * @author Bogdan
 */

function correctPNG() // correctly handle PNG transparency in Win IE 5.5 & 6.
{
	try {
		var arVersion = navigator.appVersion.split("MSIE")
		var version = parseFloat(arVersion[1])
		if ((version >= 5.5) && (document.body.filters)) {
			for ( var i = 0; i < document.images.length; i++) {
				var img = document.images[i]
				var imgName = img.src.toUpperCase()
				if (imgName.substring(imgName.length - 3, imgName.length) == "PNG") {
					var imgID = (img.id) ? "id='" + img.id + "' " : ""
					var imgClass = (img.className) ? "class='" + img.className + "' " : ""
					var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' "
					var imgStyle = "display:inline-block;" + img.style.cssText
					if (img.align == "left")
						imgStyle = "float:left;" + imgStyle
					if (img.align == "right")
						imgStyle = "float:right;" + imgStyle
					if (img.parentElement.href)
						imgStyle = "cursor:hand;" + imgStyle
					var strNewHTML = "<span " + imgID + imgClass + imgTitle + " style=\"" + "width:" + img.width
							+ "px; height:" + img.height + "px;" + imgStyle + ";"
							+ "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader" + "(src=\'" + img.src
							+ "\', sizingMethod='scale');\"></span>"
					img.outerHTML = strNewHTML
					i = i - 1
				}
			}
		}
	} catch (err) {
		alert(err.message);
	}
}

function processRequest(page) {
	var xmlObj = false;
	var elem_id = 'mainContent';
	if (window.XMLHttpRequest)
		xmlObj = new XMLHttpRequest();
	else if (window.ActiveXObject)
		xmlObj = new ActiveXObject("Microsoft.XMLHTTP");
	if (xmlObj) {
		var myurl = 'pages/' + page + '.php';
		try {
			pageTracker._trackPageview(myurl);
		} catch (err) {
			trace('Page not registered: ' + myurl)
		}
		xmlObj.onreadystatechange = function() {
			// 0=Uninitialised 1=Loading 2=Loaded 3=Interactive 4=Completed
			if (xmlObj.readyState == 4) {
				var result = xmlObj.responseText;
				elem = document.getElementById(elem_id);
				elem.innerHTML = result;
				try {
					elem.focus();
				} catch (err) {
				}
			}
		}
		xmlObj.open("GET", myurl, true);
		xmlObj.send(null);
	} else {
		alert('xmlObj is null!');
	}
}

function processRequestPOST(url, parameters) {
	var xmlObj = false;
	if (window.XMLHttpRequest) {
		xmlObj = new XMLHttpRequest();
		if (xmlObj.overrideMimeType)
			xmlObj.overrideMimeType('text/html');
	} else if (window.ActiveXObject) {
		try {
			xmlObj = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				xmlObj = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {
			}
		}
	}
	if (!xmlObj)
		return false;
	try {
		pageTracker._trackPageview(url);
	} catch (err) {
		trace('Page not registered: ' + url)
	}
	xmlObj.onreadystatechange = function() {
		// 0=Uninitialised 1=Loading 2=Loaded 3=Interactive 4=Completed
		if (xmlObj.readyState == 4) {
			var result = xmlObj.responseText;
			trace(result);
		}
	}
	xmlObj.open('POST', url, true);
	xmlObj.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xmlObj.setRequestHeader("Content-length", parameters.length);
	xmlObj.setRequestHeader("Connection", "close");
	xmlObj.send(parameters);
	return true;
}

function _e(id) {
	return document.getElementById(id);
}

function trace(obj) {
	try {
		console.log(obj);
	} catch (err) {
		try {
			document.getElementById('console').innerHTML = obj;
		} catch (e) {
		}
	}
}

function hint(elem, text, direction) {
	switch (direction) {
	case 'in':
		elem.style.color = "#000";
		if (elem.value != text)
			return;
		elem.value = '';
		break;
	case 'out':
		if (elem.value.length != 0 && elem.value != text)
			return;
		if (elem.value.length == 0)
			elem.value = text;
		elem.style.color = "#AAA";
		break;
	}
}

function sendMessage(elem, page, fieldsArr) {
	elem.disabled = true;
	var invalidFields = new Array();
	var parameters = "";
	for (key in fieldsArr) {
		var val = _e(key).value;
		if (val.length == 0 || (fieldsArr[key].length > 0 && val == fieldsArr[key])) {
			invalidFields[invalidFields.length] = key;
			_e(key).style.border = "thin solid red";
		} else {
			_e(key).style.border = "";
			parameters += '&' + key + '=' + val;
		}
	}
	if (invalidFields.length > 0) {
		elem.disabled = false;
		showMessage('You have some invalid fields!<br/>Please correct your form');
		return;
	}
	if (parameters.length == 0) {
		elem.disabled = false;
		showMessage('We&apos;re sorry, there data to be sent!');
		return;
	}
	parameters = parameters.substr(1);
	showMessage('Thank you for your message.<br/>Please be patient while we submit your data', 3000);
	processRequestPOST(page, parameters);
}

function showMessage(text, timeout) {
	try {
		var vscroll = 0;
		if (self.pageYOffset)
			vscroll = self.pageYOffset;
		else if (document.documentElement && document.documentElement.scrollTop)
			vscroll = document.documentElement.scrollTop;
		else if (document.body)
			vscroll = document.body.clientHeight;
		trace(document.body.scrollTop);
		trace(vscroll);
		_e('message_text').innerHTML = text;
		if (document.body.scrollTop)
			vscroll = document.offsetTop;
		_e('messageContainer').style.top = (vscroll + (vscroll > 340 ? 150 : 340)) + 'px';
		_e('messageContainer').style.display = '';
		if (typeof timeout == 'undefined')
			var timeout = 2000;
		setTimeout(hideMessage, timeout);
	} catch (err) {
		trace(err.message)
	}
}

function hideMessage() {
	try {
		_e('message_text').innerHTML = '';
		_e('messageContainer').style.display = 'none';
	} catch (err) {
		trace(err.message)
	}
}

function registerDownload(elem) {
	try {
		var search = 'download.php?file=';
		var href = elem.href;
		if (!href || href.length == 0)
			trace('No HREF attribute');
		var pos = href.indexOf(search);
		if (pos >= 0)
			href = href.substr(search.length + pos);
		pageTracker._trackPageview(href);
	} catch (err) {
		trace('Page not registered: ' + href)
	}
	return true;
}