var BrowserDetect =
{
	init: function ()
	{
		this.browser = this.searchString(this.dataBrowser) || "unknown";
		this.version = this.searchVersion(navigator.userAgent)
					|| this.searchVersion(navigator.appVersion)
					|| "unknown";
		this.OS = this.searchString(this.dataOS) || "unknown";
		this.OS = this.OS.toLowerCase();
		this.browser = this.browser.toLowerCase();
	}
	,
	searchString: function (data)
	{
		for (var i = 0; i < data.length; i++)
		{
			var dataString = data[i].string;
			var dataProp = data[i].prop;
			this.versionSearchString = data[i].versionSearch || data[i].identity;
			if (dataString)
			{
				if (dataString.indexOf(data[i].subString) != -1) return data[i].identity;
			}
			else if (dataProp) return data[i].identity;
		}
	}
	,
	searchVersion: function (dataString)
	{
		var index = dataString.indexOf(this.versionSearchString);
		if (index == -1) return;
		return parseFloat(dataString.substring(index + this.versionSearchString.length + 1));
	}
	,
	dataBrowser:
	[
		{
			string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		}
		,
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari"
		}
		,
		{
			prop: window.opera,
			identity: "Opera"
		}
		,
		{
			string: navigator.vendor,
			subString: "iCab",
			identity: "iCab"
		}
		,
		{
			string: navigator.vendor,
			subString: "KDE",
			identity: "Konqueror"
		}
		,
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		}
		,
		{
			string: navigator.vendor,
			subString: "Camino",
			identity: "Camino"
		}
		,
		{		// for newer Netscapes (6+)
			string: navigator.userAgent,
			subString: "Netscape",
			identity: "Netscape"
		}
		,
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Explorer",
			versionSearch: "MSIE"
		}
		,
		{
			string: navigator.userAgent,
			subString: "Gecko",
			identity: "Mozilla",
			versionSearch: "rv"
		}
		,
		{ 		// for older Netscapes (4-)
			string: navigator.userAgent,
			subString: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla"
		}
	]
	,
	dataOS :
	[
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]
};
BrowserDetect.init();
var browser = BrowserDetect.browser;
function collapsepanel(obj)
{
	if((browser=='explorer') || (browser=='mozilla') || (browser=='opera')) obj.style.display='none';
	else if(browser=='firefox') obj.setAttribute('style', 'display:none');
}
function expandpanel(obj)
{
	if((browser=='explorer') || (browser=='mozilla') || (browser=='opera')) obj.style.display='inline';
	else if(browser=='firefox') obj.setAttribute('style', 'inline');
}
function changeclass(obj, className)
{

	if((browser=='explorer') || (browser=='mozilla') || (browser=='opera')) obj.className=className;
	else if(browser=='firefox') obj.setAttribute('class', className);
}



function clicktd(e) //called in the index.php page or the articles.php page
{
	changeclass(e, 'clicked');
	e.removeAttribute('enableonmouseout');
}
function mouseovertd(td)
{//alert(td.getAttribute('enableonmouseout'));
	if(td.getAttribute('enableonmouseout')) changeclass(td, 'menumouseover');
}
function mouseouttd(td)
{
	if(td.getAttribute('enableonmouseout')) changeclass(td, 'menumouseout');
}
function goto(td, url)
{
	//alert('f');
	if(td.getAttribute('enableonmouseout')) document.location.href = url;
}

function enablemouseoutforall() //called just after drawing the menus
{
	for(i=1; i<=8; i++)
	{
		var e = document.getElementById('category' + i);
		e.setAttribute('enableonmouseout', 'true');
	}
	var e = document.getElementById('mainpage');
	e.setAttribute('enableonmouseout', 'true');
}