/**
 * jQuery.timers - Timer abstractions for jQuery
 * Written by Blair Mitchelmore (blair DOT mitchelmore AT gmail DOT com)
 * Licensed under the WTFPL (http://sam.zoy.org/wtfpl/).
 * Date: 2009/08/13
 *
 * @author Blair Mitchelmore
 * @version 1.1.3
 *
 **/

jQuery.fn.extend({
	everyTime: function(interval, label, fn, times, belay) {
		return this.each(function() {
			jQuery.timer.add(this, interval, label, fn, times, belay);
		});
	},
	oneTime: function(interval, label, fn) {
		return this.each(function() {
			jQuery.timer.add(this, interval, label, fn, 1);
		});
	},
	stopTime: function(label, fn) {
		return this.each(function() {
			jQuery.timer.remove(this, label, fn);
		});
	}
});

jQuery.extend({
	timer: {
		global: [],
		guid: 1,
		dataKey: "jQuery.timer",
		regex: /^([0-9]+(?:\.[0-9]*)?)\s*(.*s)?$/,
		powers: {
			// Yeah this is major overkill...
			'ms': 1,
			'cs': 10,
			'ds': 100,
			's': 1000,
			'das': 10000,
			'hs': 100000,
			'ks': 1000000
		},
		timeParse: function(value) {
			if (value == undefined || value == null)
				return null;
			var result = this.regex.exec(jQuery.trim(value.toString()));
			if (result[2]) {
				var num = parseFloat(result[1]);
				var mult = this.powers[result[2]] || 1;
				return num * mult;
			} else {
				return value;
			}
		},
		add: function(element, interval, label, fn, times, belay) {
			var counter = 0;
			
			if (jQuery.isFunction(label)) {
				if (!times) 
					times = fn;
				fn = label;
				label = interval;
			}
			
			interval = jQuery.timer.timeParse(interval);

			if (typeof interval != 'number' || isNaN(interval) || interval <= 0)
				return;

			if (times && times.constructor != Number) {
				belay = !!times;
				times = 0;
			}
			
			times = times || 0;
			belay = belay || false;
			
			var timers = jQuery.data(element, this.dataKey) || jQuery.data(element, this.dataKey, {});
			
			if (!timers[label])
				timers[label] = {};
			
			fn.timerID = fn.timerID || this.guid++;
			
			var handler = function() {
				if (belay && this.inProgress) 
					return;
				this.inProgress = true;
				if ((++counter > times && times !== 0) || fn.call(element, counter) === false)
					jQuery.timer.remove(element, label, fn);
				this.inProgress = false;
			};
			
			handler.timerID = fn.timerID;
			
			if (!timers[label][fn.timerID])
				timers[label][fn.timerID] = window.setInterval(handler,interval);
			
			this.global.push( element );
			
		},
		remove: function(element, label, fn) {
			var timers = jQuery.data(element, this.dataKey), ret;
			
			if ( timers ) {
				
				if (!label) {
					for ( label in timers )
						this.remove(element, label, fn);
				} else if ( timers[label] ) {
					if ( fn ) {
						if ( fn.timerID ) {
							window.clearInterval(timers[label][fn.timerID]);
							delete timers[label][fn.timerID];
						}
					} else {
						for ( var fn in timers[label] ) {
							window.clearInterval(timers[label][fn]);
							delete timers[label][fn];
						}
					}
					
					for ( ret in timers[label] ) break;
					if ( !ret ) {
						ret = null;
						delete timers[label];
					}
				}
				
				for ( ret in timers ) break;
				if ( !ret ) 
					jQuery.removeData(element, this.dataKey);
			}
		}
	}
});

jQuery(window).bind("unload", function() {
	jQuery.each(jQuery.timer.global, function(index, item) {
		jQuery.timer.remove(item);
	});
});

// Creating custom :external selector
$.expr[':'].external = function(obj){
    return !obj.href.match(/^mailto\:/)
            && (obj.hostname != location.hostname)
            && (obj.hostname != location.hostname);
};
$.expr[':'].mailto = function(obj){
    return obj.href.match(/^mailto\:/);
};

//preloadfunction
jQuery.preloadImages = function()
{
  for(var i = 0; i<arguments.length; i++)
  {
    jQuery("<img>").attr("src", arguments[i]);
  }
}

$(document).ready(function(){
	
	$("a[href$='.pdf']").addClass("pdflink");
	$("a[href$='.doc']").addClass("doclink");
	$("a[href$='.ppt']").addClass("pptlink");
	$("a[href$='.xls']").addClass("xlslink");
	/*$("a:external:not(#sidenav a, #footer a, a[href^='http://www.decison2'], a[href^='http://decison2'])").addClass("extlink").attr("target", "_blank");*/
	$("a:mailto:not(#footer a)").addClass("maillink");
	
	//hide all images but the first one
	$("#homeshow img:not(.current)").hide();
	
	//get number of images in group
	$num_imgs = $("#homeshow img").length;
	i = 0;
	p = 0;
	
	startShow = function(){
		//set timer to fade out and in images
		//after 5sec fade out CURRENT and fade in NEW
		$("#homeshow").everyTime(7000, "ishow", function(){
			if(i == $num_imgs-1){p=0;}else{p=i+1;}
			$("#homeshow img:eq("+i+")").fadeOut("slow").removeClass("current");
			$("#homeshow img:eq("+p+")").fadeIn("slow").addClass("current");
			$("#slidenav li:eq("+i+")").removeClass("current");
			$("#slidenav li:eq("+p+")").addClass("current");
			if(i == $num_imgs-1){i=0;}else{i++;}
		})
	}
	
	startShow();
	
	$("#slidenav li").click(function(){
		
		if( ! $(this).hasClass("current"))
		{
			
		//stop current one
		$("#homeshow").stopTime("ishow");
		
		//start again from index provided by link
		i = $(this).text(); //get this index from link!
		i--;
		$("#homeshow img.current").fadeOut("slow").removeClass("current");
		$("#homeshow img:eq("+i+")").fadeIn("slow").addClass("current");
		$("#slidenav li.current").removeClass("current");
		$("#slidenav li:eq("+i+")").addClass("current");
		//start counter again
		startShow();
		
		}
		
	});
			
});