// hide any DOM element by ID name
function hide(element) {
	document.getElementById(element).style.display='none';
}

// show (un-hide) any DOM element by ID name
function show(element) {
	document.getElementById(element).style.display='';
}


// initialize the gallery javascript (ajax!)
function initPortfolio() {
var list, i;
// Loop through all listitem tags, check if the parent contains the class column
list = document.getElementsByTagName('li');
	for (i=0;i<list.length;i++) {
		if (/column/.test(list[i].parentNode.className)) {
			// add the function popAgreement
			list[i].onclick = function() { getProjects(this.getAttribute('id'),this.getAttribute('rel'),this.getAttribute('rev'),"projects"); return false; };
		}
		if (/portfoliopage/.test(list[i].parentNode.className)) {
			// add the function popAgreement
			list[i].onclick = function() { getProjects(this.getAttribute('id'),this.getAttribute('rel'),this.getAttribute('rev'),"pages"); return false; };
		}
	}
}


// rollover script
function findimg()
{
 var imgs,i;
// Loop through all images, check if they contain the class roll
 imgs=document.getElementsByTagName('img');
 for(i=0;i<imgs.length;i++)
 {
  if(/roll/.test(imgs[i].className))
  {
// add the function roll to the parent Element of the image
  imgs[i].parentNode.onmouseover=function(){roll(this);};
  imgs[i].parentNode.onmouseout=function(){roll(this);};
  }
 }
}
function roll(o)
{
 var i,isnode,src,ftype,newsrc,nownode;
// loop through all childNodes
 for (i=0;i<o.childNodes.length;i++)
 {
  nownode=o.childNodes[i];
// if the node is an element and an IMG set the variable and exit the loop
  if(nownode.nodeType==1 && /img/i.test(nownode.nodeName))
  {
   isnode=i;
   break;
  }
 }
// check src and do the rollover
 src = o.childNodes[isnode].src;
 ftype = src.substring(src.lastIndexOf('.'), src.length);
 if(/_o/.test(src))
 {
  newsrc = src.replace('_o','');
 }else{
  newsrc = src.replace(ftype, '_o'+ftype);
 }
 o.childNodes[isnode].src=newsrc;
}

//window.onload = function(){ findimg(); }

// Function to load multiple events onload
function addLoadEvent(func) {
    var oldonload = window.onload;
    if (typeof window.onload != 'function') {
        window.onload = func;
    } else {
        window.onload = function() {
            oldonload();
            func();
        }
    }
}
// add functions to end of list
addLoadEvent(function() {
	findimg();
	initPortfolio();
})


// browser detect to load alternate stylesheets (if necessary) quirksmode.org

var BrowserDetect = {
	init: function () {
		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
		this.version = this.searchVersion(navigator.userAgent)
			|| this.searchVersion(navigator.appVersion)
			|| "an unknown version";
		this.OS = this.searchString(this.dataOS) || "an unknown OS";
	},
	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();