$(function() {

	//Submission form
	var IE6 = false /*@cc_on || @_jscript_version < 5.7 @*/;
	if(IE6) {
		$("body.programs #content-sub li.featured-sub form").show();
	} else {
		$("body.programs #content-sub li.featured-sub form").hide();
		$("body.programs #content-sub li.featured-sub h2").after('<p>USC has hundreds of international programs. <a href="#" id="expandform">Let us know</a> if we have missed one, or if you know of a new one that should be listed on this site. </p>');
	}

	$("a#expandform").click(function(){
		$("body.programs #content-sub li.featured-sub form").slideToggle();	
		return false;
	});
	
	$("ul#sortby li a").click(function(){
	return false
	})
	
	$(".feedback").hide();
	$(".success, .error").fadeIn(3000);

	// validate signup form on keyup and submit
	$("#suggest").validate();

	/* Clears out the search box on click if the value is "Search" I
	did this for people who might misspell words so when they click back
	in the box they don't lose their search term */
	$("li.search input").focus( function() {
		if ($(this).val()=="Search") {$(this).val("");}
	});

    $("li.search input").blur( function() {
    	if ($(this).val()=="") {$(this).val("Search");}
    });

	
	//produce gallery nav
	$(".cycle").clone().appendTo("#media");
	$(".cycle").eq(1).removeClass("cycle").addClass("cycle-nav");
	$(".cycle-nav p").hide();
	$(".cycle-nav li img").removeClass("reflect");
	
	//clone photo page image for thumbnail
	$("body.photos #content-main img.banner-photo").clone().prependTo("#about-this-photo");
	$("body.photos #content-main img.banner-photo").eq(1).removeClass("banner-photo").addClass("banner-thumb");
	
	//jQuery cycle plugin for home page
	$('.cycle') 
			.after('<div id="thumbnav">') 
			.cycle({ 
			fx: 'fade', 
			speed: 'slow', 
			random: 1,
			timeout: 11000, 
			pager: '#thumbnav',
			before: onBefore, 
    		after: onAfter 
	});
	
	function onBefore() { 
		$(".cycle li p").hide();
	}
	
	function onAfter() { 
		setTimeout("$('.cycle li p').slideDown('slow')", 50);
		setTimeout("$('.cycle li p').fadeOut('slow')", 10500);
 	 
	}
	
	/*$('#news li li').expander({
		slicePoint: 150, 
		widow: 2,
		expandText: '[show more]',
		expandPrefix: '... ',
		expandEffect: 'fadeIn',
		expandSpeed: '100',
		userCollapse: 'true',
		userCollapseText: '[show less]',
		userCollapsePrefix: ' '
	});*/

	
	//dropshadows
	$("#content-main, #thumbnav a, li.featured-sub, li.featured-main").dropShadow({left: 0, top: 1, opacity: 0.2, blur: 2});

});


/**
 * reflection.js v2.0
 * http://cow.neondragon.net/stuff/reflection/
 * Freely distributable under MIT-style license.
 */
 
/* From prototype.js */
if (!document.myGetElementsByClassName) {
	document.myGetElementsByClassName = function(className) {
		var children = document.getElementsByTagName('*') || document.all;
		var elements = new Array();
	  
		for (var i = 0; i < children.length; i++) {
			var child = children[i];
			var classNames = child.className.split(' ');
			for (var j = 0; j < classNames.length; j++) {
				if (classNames[j] == className) {
					elements.push(child);
					break;
				}
			}
		}
		return elements;
	}
}

var Reflection = {
	defaultHeight : 0.19,
	defaultOpacity: 0.25,
	
	add: function(image, options) {
		Reflection.remove(image);
		
		doptions = { "height" : Reflection.defaultHeight, "opacity" : Reflection.defaultOpacity }
		if (options) {
			for (var i in doptions) {
				if (!options[i]) {
					options[i] = doptions[i];
				}
			}
		} else {
			options = doptions;
		}
	
		try {
			var d = document.createElement('div');
			var p = image;
			
			var classes = p.className.split(' ');
			var newClasses = '';
			for (j=0;j<classes.length;j++) {
				if (classes[j] != "reflect") {
					if (newClasses) {
						newClasses += ' '
					}
					
					newClasses += classes[j];
				}
			}

			var reflectionHeight = Math.floor(p.height*options['height']);
			var divHeight = Math.floor(p.height*(1+options['height']));
			
			var reflectionWidth = p.width;
			
			if (document.all && !window.opera) {
				/* Fix hyperlinks */
                if(p.parentElement.tagName == 'A') {
	                var d = document.createElement('a');
	                d.href = p.parentElement.href;
                }  
                    
				/* Copy original image's classes & styles to div */
				d.className = newClasses;
				p.className = 'reflected';
				
				d.style.cssText = p.style.cssText;
				p.style.cssText = 'vertical-align: bottom';
			
				var reflection = document.createElement('img');
				reflection.src = p.src;
				reflection.style.width = reflectionWidth+'px';
				reflection.style.display = 'block';
				reflection.style.height = p.height+"px";
				
				reflection.style.marginBottom = "-"+(p.height-reflectionHeight)+'px';
				reflection.style.filter = 'flipv progid:DXImageTransform.Microsoft.Alpha(opacity='+(options['opacity']*100)+', style=1, finishOpacity=0, startx=0, starty=0, finishx=0, finishy='+(options['height']*100)+')';
				
				d.style.width = reflectionWidth+'px';
				d.style.height = divHeight+'px';
				p.parentNode.replaceChild(d, p);
				
				d.appendChild(p);
				d.appendChild(reflection);
			} else {
				var canvas = document.createElement('canvas');
				if (canvas.getContext) {
					/* Copy original image's classes & styles to div */
					d.className = newClasses;
					p.className = 'reflected';
					
					d.style.cssText = p.style.cssText;
					p.style.cssText = 'vertical-align: bottom';
			
					var context = canvas.getContext("2d");
				
					canvas.style.height = reflectionHeight+'px';
					canvas.style.width = reflectionWidth+'px';
					canvas.height = reflectionHeight;
					canvas.width = reflectionWidth;
					
					d.style.width = reflectionWidth+'px';
					d.style.height = divHeight+'px';
					p.parentNode.replaceChild(d, p);
					
					d.appendChild(p);
					d.appendChild(canvas);
					
					context.save();
					
					context.translate(0,image.height-1);
					context.scale(1,-1);
					
					context.drawImage(image, 0, 0, reflectionWidth, image.height);
	
					context.restore();
					
					context.globalCompositeOperation = "destination-out";
					var gradient = context.createLinearGradient(0, 0, 0, reflectionHeight);
					
					gradient.addColorStop(1, "rgba(255, 255, 255, 1.0)");
					gradient.addColorStop(0, "rgba(255, 255, 255, "+(1-options['opacity'])+")");
		
					context.fillStyle = gradient;
					context.rect(0, 0, reflectionWidth, reflectionHeight*2);
					context.fill();
				}
			}
		} catch (e) {
	    }
	},
	
	remove : function(image) {
		if (image.className == "reflected") {
			image.className = image.parentNode.className;
			image.parentNode.parentNode.replaceChild(image, image.parentNode);
		}
	}
}

function addReflections() {
	var rimages = document.myGetElementsByClassName('reflect');
	for (i=0;i<rimages.length;i++) {
		var rheight = null;
		var ropacity = null;
		
		var classes = rimages[i].className.split(' ');
		for (j=0;j<classes.length;j++) {
			if (classes[j].indexOf("rheight") == 0) {
				var rheight = classes[j].substring(7)/100;
			} else if (classes[j].indexOf("ropacity") == 0) {
				var ropacity = classes[j].substring(8)/100;
			}
		}
		
		Reflection.add(rimages[i], { height: rheight, opacity : ropacity});
	}
}

var previousOnload = window.onload;
window.onload = function () { if(previousOnload) previousOnload(); addReflections(); }