var galNum = 1;

/* Define all the nav images */
if (document.images) {
	nav_home_on = new Image();      
	nav_home_on.src = "images/nav_home_on.gif";
	nav_home_off = new Image();      
	nav_home_off.src = "images/nav_home_off.gif";
	
	nav_weddings_on = new Image();      
	nav_weddings_on.src = "images/nav_weddings_on.gif";
	nav_weddings_off = new Image();      
	nav_weddings_off.src = "images/nav_weddings_off.gif";
	
	nav_corporate_on = new Image();      
	nav_corporate_on.src = "images/nav_corporate_on.gif";
	nav_corporate_off = new Image();      
	nav_corporate_off.src = "images/nav_corporate_off.gif";
	
	nav_party_on = new Image();      
	nav_party_on.src = "images/nav_party_on.gif";
	nav_party_off = new Image();      
	nav_party_off.src = "images/nav_party_off.gif";	
	
	nav_rentals_on = new Image();      
	nav_rentals_on.src = "images/nav_rentals_on.gif";
	nav_rentals_off = new Image();      
	nav_rentals_off.src = "images/nav_rentals_off.gif";
	
	nav_tstmnls_on = new Image();      
	nav_tstmnls_on.src = "images/nav_tstmnls_on.gif";
	nav_tstmnls_off = new Image();      
	nav_tstmnls_off.src = "images/nav_tstmnls_off.gif";
	
	nav_about_on = new Image();      
	nav_about_on.src = "images/nav_about_on.gif";
	nav_about_off = new Image();      
	nav_about_off.src = "images/nav_about_off.gif";
	
	nav_contact_on = new Image();      
	nav_contact_on.src = "images/nav_contact_on.gif";
	nav_contact_off = new Image();      
	nav_contact_off.src = "images/nav_contact_off.gif";	
}

function turnOn(id) {
	document.getElementById(id).src = eval(id + "_on.src");
}

function turnOff(id) {
	document.getElementById(id).src = eval(id + "_off.src");
}

function swapGallery(gallery) {
	
	if (gallery == 'wedding_1') {
		galNum = 1;
		document.getElementById('gal_img_big_link').style.visibility = 'visible';
		document.getElementById('gal_img_big_link').style.display = 'inline';
		document.getElementById('gal_img_big_link').href = 'http://www.presence-photo.com';
	} else {
		galNum = 2;
		document.getElementById('gal_img_big_link').style.visibility = 'hidden';
		document.getElementById('gal_img_big_link').style.display = 'none';
	}
	
	document.getElementById('gal_img_1').src = "images/galleries/" + gallery + "/image1.jpg";
	document.getElementById('gal_img_2').src = "images/galleries/" + gallery + "/image2.jpg";
	document.getElementById('gal_img_3').src = "images/galleries/" + gallery + "/image3.jpg";
	document.getElementById('gal_img_4').src = "images/galleries/" + gallery + "/image4.jpg";
	document.getElementById('gal_img_5').src = "images/galleries/" + gallery + "/image5.jpg";
	document.getElementById('gal_img_6').src = "images/galleries/" + gallery + "/image6.jpg";
	document.getElementById('gal_img_7').src = "images/galleries/" + gallery + "/image7.jpg";
	document.getElementById('gal_img_8').src = "images/galleries/" + gallery + "/image8.jpg";
	document.getElementById('gal_img_9').src = "images/galleries/" + gallery + "/image9.jpg";
	document.getElementById('gal_img_10').src = "images/galleries/" + gallery + "/image10.jpg";
	document.getElementById('gal_img_11').src = "images/galleries/" + gallery + "/image11.jpg";
	document.getElementById('gal_img_12').src = "images/galleries/" + gallery + "/image12.jpg";
	
	document.getElementById('gal_img_big').src = "images/galleries/" + gallery + "/image1_big.jpg";
}

function makeBig(img, url) {
	
	var temp = new Array();
	temp = document.getElementById(img).src.length;
	newSrc = document.getElementById(img).src.substring(0, temp - 4);
	newSrc = newSrc + '_big.jpg';
	
	document.getElementById('gal_img_big').src = newSrc;
	if (galNum == 1) {
		if (url) {
			document.getElementById('gal_img_big_link').style.visibility = 'visible';
			document.getElementById('gal_img_big_link').style.display = 'inline';
			document.getElementById('gal_img_big_link').href = url;
		} else {
			document.getElementById('gal_img_big_link').style.visibility = 'hidden';
			document.getElementById('gal_img_big_link').style.display = 'none';
		}
	} else {
		document.getElementById('gal_img_big_link').style.visibility = 'hidden';
		document.getElementById('gal_img_big_link').style.display = 'none';
	}
}