/*
Author: Dan Atrill - DJA
*/

// For the portfolios page, this loads in an image and then the text file into the appropriate place

function load_portfolio(portfolio_id) {
    var p_dir = "_assets/_img/portfolio/";
    var text_addr = p_dir+portfolio_id+".txt";
    var img_addr = p_dir+portfolio_id+".jpg";

    $('lc_image').update("<img src=\""+img_addr+"\" />");
    
    var rand = Math.floor(Math.random()*11);
    var url = text_addr+"?u="+rand;
    var notice = $('lc_text');
    notice.update("Loading text...");

    new Ajax.Request(url, {
      method: 'get',
      onSuccess: function(transport) {
        if (transport.responseText)
          notice.update(transport.responseText);
      }
    });
}

// Next bit not now used - this was the show / hide bit for the 3 boxes at the bottom of the index page 
// - it showed one tab, hid anything else that was showing and scrolled to the right place on the screen

// the blind effect on the front page - toggles the tab clicked (ie is it visible = blindup, not visible = binddown)

var scrolledto = 0;
var tablength = 0;

function textTabElements() {
    var tabelements = $$('div.texttab');
    tablength = tabelements.length;
}

function hideText(tab_id) {
    for(i=1;i<=tablength;i++) {
        var i_id = "speech_" + i;
        if(i_id != tab_id) {
            if($(i_id).visible()) {
                $(i_id).hide();
            }
        }
    }
}

function viewText(tab_id) {
    $(tab_id).toggle();
    hideText(tab_id);
}

// to avoid some predicatable issue, detect browser and OS
// Thanks PPK - http://www.quirksmode.org/js/detect.html

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: "Chrome",
			identity: "Chrome"
		},
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari",
			versionSearch: "Version"
		},
		{
			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.userAgent,
			   subString: "iPhone",
			   identity: "iPhone/iPod"
	    },
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};
BrowserDetect.init();