function checkEmail(){
    re = new RegExp("^[_a-zA-Z0-9\.\-]+@[_a-zA-Z0-9\.\-]+\.[a-zA-Z]{2,4}$");
    if (!re.test(document.getElementById("email").value)) {
      window.alert("Emailová adresa nemá správný formát / The email adress is invalid");
      return false;
    } else {
    return true;
    }
}

function checkContact(){

re = new RegExp("^[_a-zA-Z0-9\.\-]+@[_a-zA-Z0-9\.\-]+\.[a-zA-Z]{2,4}$");
  if (!re.test(document.contact.email.value)) {
     window.alert("The email adress is invalid");
     document.contact.email.focus();
     return false;
} 

return true;

}

$(document).ready(function(){

	//Hide (Collapse) the toggle containers on load
	$(".toggle_container").hide(); 
	$(".active_container").show(); 
	

	//Switch the "Open" and "Close" state per click then slide up/down (depending on open/close state)
	$(".toggle_more").click(function(){
		$(this).toggleClass("active").next().slideToggle("slow");
		return false; //Prevent the browser jump to the link anchor
	});

});


$(document).ready(function() {

	//Set Default State of each portfolio piece
	$(".paging").show();
	$(".paging a:first").addClass("active");
		
	//Get size of images, how many there are, then determin the size of the image reel.
	var imageWidth = $(".window").width();
	var imageSum = $(".image_reel img").size();
	var imageReelWidth = imageWidth * imageSum;
	
	//Adjust the image reel to its new size
	$(".image_reel").css({'width' : imageReelWidth});
	
	//Paging + Slider Function
	rotate = function(){	
		var triggerID = $active.attr("rel") - 1; //Get number of times to slide
		var image_reelPosition = triggerID * imageWidth; //Determines the distance the image reel needs to slide

		$(".paging a").removeClass('active'); //Remove all active class
		$active.addClass('active'); //Add active class (the $active is declared in the rotateSwitch function)
		
		//Slider Animation
		$(".image_reel").animate({ 
			left: -image_reelPosition
		}, 500 );
		
	}; 
	
	//Rotation + Timing Event
	rotateSwitch = function(){		
		play = setInterval(function(){ //Set timer - this will repeat itself every 3 seconds
			$active = $('.paging a.active').next();
			if ( $active.length === 0) { //If paging reaches the end...
				$active = $('.paging a:first'); //go back to first
			}
			rotate(); //Trigger the paging and slider function
		}, 4000); //Timer speed in milliseconds (3 seconds)
	};
	
	rotateSwitch(); //Run function on launch
	
	//On Hover
	$(".image_reel a").hover(function() {
		clearInterval(play); //Stop the rotation
	}, function() {
		rotateSwitch(); //Resume rotation
	});	
	
	//On Click
	$(".paging a").click(function() {	
		$active = $(this); //Activate the clicked paging
		//Reset Timer
		clearInterval(play); //Stop the rotation
		rotate(); //Trigger rotation immediately
		rotateSwitch(); // Resume rotation
		return false; //Prevent browser jump to link anchor
	});	
	
});

$(function () {
			var tabContainers = $('div.tabs > div');
			tabContainers.hide().filter(':first').show();
			
			$('div.tabs ul.tabNavigation a').click(function () {
				tabContainers.hide();
				tabContainers.filter(this.hash).show();
				$('div.tabs ul.tabNavigation a').removeClass('selected');
				$(this).addClass('selected');
				return false;
			}).filter(':first').click();
		});