//  pageload() variables ***************/

// flag for first loading of the page
var PAGE_REFRESH = true;

// main page for navigation
var PAGE = '';
// topic to navigate to on main page
var PAGE_TOPIC = '';

function pageload(hash) {
	PAGE_TOPIC = '';
	
	// alert("pageload: " + hash);
	$("#ajax_loading").fadeIn();
	$("#home_button, #footer").fadeOut(300);
	
	scrollTop();

	if(hash) {
		var values = hash.split("/");
		// main page
		PAGE = values[1];
		
		// for scrolling to specific page heading
		if(values[2])
			PAGE_TOPIC = values[2];
			
	} else {
		PAGE = 'home';
	}
	
	// animate portfolio slider
	if(PAGE == 'home')
		openSlider();
	else
		squeezeSlider();
	
	//alert("page:"+page);
	
	$.ajax({
		type:'POST',
		url: "handlers/get_page.php",
		data:"page="+PAGE,
		dataType:"json",
		success: function(msg){

			if(parseInt(msg.status)==1){
				loadContent(msg);
				
				if(PAGE!='home' && PAGE!='site-map' && PAGE!='privacy-policy') {

					// hide home button and reposition above active .top_nav link
					var pos = $("#"+PAGE).position();
					$("#home_button").fadeOut(function(){$(this).css({top:pos.top-15, left:pos.left+100}).fadeIn();});
					
					// reset all .top_nav buttons except for the selected page
					$(".top_nav:not(#"+PAGE+")").animate({ 'backgroundColor':'#333', 'marginTop':5, height:32}, 300).removeClass("nav_active");
					
					// display current nav setting if not already set
					$("#"+PAGE).animate({ 'backgroundColor':'#00B9FF',  'marginTop':0, height:37  }, 150).addClass("nav_active"); 
					
				} else {
					// remove current nav selection as we are now back at home
					$(".nav_active").stop().animate({ 'backgroundColor':'#333', 'marginTop':5, height:32}, 300).removeClass("nav_active"); 
				}
				
			} else {
				squeezeSlider();
				$("#page_content_left").fadeOut(function(){
					$(this).html("<div class='page_block' style='height:140px;'><h2>Error: This Page Does Not Exist.</h2></div><div class='clear'></div>").fadeIn();
					$("#footer").fadeIn();																			
				});
				$("#page_content_right").fadeOut();
			}
		}
	});
	
} // pageload(hash)


function loadContent(msg){
	$("#page_content_left").fadeOut(800, function(){
		$("#page_content_left").html(msg.left).fadeIn();
	
		$("#page_content_right").fadeOut(function(){
			$("#page_content_right").html(msg.right).fadeIn(function(){
				
				$("#footer").fadeIn();	

				// scroll page to specific page header if one is selected
				if(PAGE_TOPIC != ''){
					var pos = $("h2[rel="+PAGE_TOPIC+"]").position();
					scrollTop(pos.top-25);
					$("h2[rel="+PAGE_TOPIC+"]").parents('div').animate({borderTopWidth:5});
				}

				globalFunctions();
				
				// reposition home button if scrollbars are introduced or taken away
				slideHome();
				
				if(PAGE_REFRESH)
					PAGE_REFRESH = false;
				
			});  //  $("#page_content_right").fadeIn()
		});  //  $("#page_content_right").fadeOut
	});  //  $("#page_content_left").fadeOut()

}


function slideHome(){
	// hide home button and reposition above active .top_nav link
	if( $("#"+PAGE).is("*") ) {
		var pos = $("#"+PAGE).position();
		$("#home_button").animate({top:pos.top-15, left:pos.left+100}, 200);
	}
}


// settings for page elements. called after each pageload
function globalFunctions(){
	// set hash navigation links
	$("a[rel='history']").bind('click', historyNav);

	//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
	// set up rollovers images
	// give all rollover images the same name and add '-over' to allow this script to affect all images
	// eg: arrow.png, arrow-over.png
	//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
	
	$('.rollover_image').each(function() {
	
		// rollover images
		var src = $(this).attr('src');
		var ext = src.substring(src.length-4);
		var over_src = src.replace(ext, "-over"+ext);

		// rollover image
		$(this).hover(function() {
			$(this).attr('src', over_src);
		}, function() {
			$(this).attr('src', src);
		});
		
	});
	
	// Second navigation links set up
	$('.second_nav').each(function(){
		$(this).click(function(){
			var id = $(this).attr('id');
			var pos = $("h2[rel="+id+"]").position();
			scrollTop(pos.top-25);
			$(".page_block").animate({borderTopWidth:0});;
			$("h2[rel="+id+"]").parents('.page_block').animate({borderTopWidth:5});
		});
	});
	
	// jquery corners
	$('.custom_button_wrapper').corner('7px');
	$('.selectbox_custom').corner('7px');
	$('#footer').corner('5px');
	
	// add dotted bottom border to the bottom of page_blocks except for the last one. Same with the leadership list blocks
	$('.page_block').not(':last').addClass('border_bottom_dotted');
	$('.leadership_table').not(':last').addClass('border_bottom_dotted');
	
	// set onclick for submit buttons
	$("#submit").click(function(){												
		$(this).parents("form").submit();
	});

}

function historyNav(){
	// set onlick event for buttons for hash navigation
	var hash = this.href;
	hash = hash.replace(/^.*#/, '');
	$.historyLoad(hash);
	return false;
}