function expand_content(div, url, link_underline) {
	var ele = document.getElementById(div);
	var url = document.getElementById(url);
	
	
	if(ele.style.display == "block" || ele.style.display == "") {
    	ele.style.display = "none";
		if(link_underline == "Yes")
			url.style.textDecoration = "none";
  	}
	else {
		ele.style.display = "block";
		if(link_underline == "Yes")
			url.style.textDecoration = "underline";
	}
}	

function expand_all(a_tag, type, contentDiv, titleDiv, link_underline) {
	if (contentDiv.constructor == Array) {
		for(i=0; i < contentDiv.length; i++) {
			var ele = document.getElementById(contentDiv[i]);
			var url = document.getElementById(titleDiv[i]);
			var tag = document.getElementById(a_tag);
			
			if(tag.innerHTML == "Collapse All" || type == "collapse") {
				ele.style.display = "none";
				if(link_underline == "Yes")
					url.style.textDecoration = "none";
			} else if(tag.innerHTML == "Expand All" || type == "expand" || type == "both") {
				ele.style.display = "block";
				if(link_underline == "Yes")
					url.style.textDecoration = "underline";
			}
		}
		if(tag.innerHTML == "Collapse All" && type == "both") 
			tag.innerHTML = "Expand All";
		else if(tag.innerHTML == "Expand All" && type == "both")
			tag.innerHTML = "Collapse All";		
	}
	else {
		expand_content(contentDiv);
	}
}

function expand_trip_content(div1, div2){
	var ele1 = document.getElementById(div1);
	var ele2 = document.getElementById(div2);
	
	if(ele1.style.display == "block" || ele1.style.display == "") {
    		ele1.style.display = "none";
  	}
	else {
		ele1.style.display = "block";
	}

	if(ele2.style.display == "block" || ele2.style.display == "") {
    		ele2.style.display = "none";
  	}
	else {
		ele2.style.display = "block";
	}

}

function expand_all_trip_content(a_tag, div2, div1, type) {
	
	if (div1.constructor == Array) {
		for(i=0; i < div1.length; i++) {
			var ele1 = document.getElementById(div1[i]);
			var ele2 = document.getElementById(div2[i]);
			var tag = document.getElementById(a_tag);
			
			if(type == "collapse") {
				ele1.style.display = "none";
				ele2.style.display = "none";
			}
			else if (type == "expand"){
				ele1.style.display = "block";
				ele2.style.display = "block";
			}
		}
	}
}

function expand_contact_list(div, url, content_type) {
	var ele = document.getElementById(div);
	var url = document.getElementById(url);
	var content = document.getElementById(content_type);
	
	if(ele.style.display == "block" || ele.style.display == "") {
    	ele.style.display = "none";
		content.style.display = "none";
  	}
	else {
		ele.style.display = "block";
		content.style.display = "block";
	}
}

function swap_contact_list(content_a, content_b, title) {
	var content_a = document.getElementById(content_a);
	var content_b = document.getElementById(content_b);
	var url = document.getElementById(title);
	
	if(url.innerHTML == "View By Individual"){
    	content_a.style.display = "block";
    	content_b.style.display = "none";
		url.innerHTML = "View As List";
	}
	else if(url.innerHTML == "View As List"){
    	content_a.style.display = "none";
    	content_b.style.display = "block";
		url.innerHTML = "View By Individual";
	}
}

function swap_trip_list(content_a, content_b, title) {
	var content_a = document.getElementById(content_a);
	var content_b = document.getElementById(content_b);
	var url = document.getElementById(title);
	
	if(url.innerHTML == "View By Trip"){
    	content_a.style.display = "block";
    	content_b.style.display = "none";
		url.innerHTML = "View As List";
	}
	else if(url.innerHTML == "View As List"){
    	content_a.style.display = "none";
    	content_b.style.display = "block";
		url.innerHTML = "View By Trip";
	}
}

function display_placement_section(section, choices) {
	var div1 = document.getElementById(section);
	var div2 = document.getElementById(choices);
	
	if(div1.style.display == "block" || div1.style.display == "") {
    	div1.style.display = "none";
		div2.style.display = "none";
  	}
	else {
		div1.style.display = "block";
		div2.style.display = "block";
	}
}

function expand_placement_page(a_tag, type, contentDiv, choicesDiv) {
	if (contentDiv.constructor == Array) {
		for(i=0; i < contentDiv.length; i++) {
			var ele = document.getElementById(contentDiv[i]);
			var ele2 = document.getElementById(choicesDiv[i]);
			var tag = document.getElementById(a_tag);
			
			if(tag.innerHTML == "Collapse All" || type == "collapse") {
				ele.style.display = "none";
				ele2.style.display = "none";
			} else if(tag.innerHTML == "Expand All" || type == "expand" || type == "both") {
				ele.style.display = "block";
				ele2.style.display = "block";
			}
		}
		if(tag.innerHTML == "Collapse All" && type == "both") 
			tag.innerHTML = "Expand All";
		else if(tag.innerHTML == "Expand All" && type == "both")
			tag.innerHTML = "Collapse All";		
	}
	else {
		expand_content(contentDiv);
	}
}

function swap_content(content_a, content_b, title, text_a, text_b) {
	var content_a = document.getElementById(content_a);
	var content_b = document.getElementById(content_b);
	var url = document.getElementById(title);
	
	if(url.innerHTML == text_b){
    	content_a.style.display = "block";
    	content_b.style.display = "none";
		url.innerHTML = text_a;
	}
	else if(url.innerHTML == text_a){
    	content_a.style.display = "none";
    	content_b.style.display = "block";
		url.innerHTML = text_b;
	}
}

function swap_divs(content_a, content_b, title, text_a, text_b) {
	var content_a = document.getElementById(content_a);
	var content_b = document.getElementById(content_b);
	var url = document.getElementById(title);
	
	if(url.innerHTML == text_b){
    	content_a.style.display = "block";
    	content_b.style.display = "none";
		url.innerHTML = text_a;
	}
	else if(url.innerHTML == text_a){
    	content_a.style.display = "none";
    	content_b.style.display = "block";
		url.innerHTML = text_b;
	}
}

function select_divs(show_div, div1, div2, div3, div4) {
	var div1 = document.getElementById(div1);
	var div2 = document.getElementById(div2);
	var div3 = document.getElementById(div3);
	var div4 = document.getElementById(div4);
	
	if(show_div == 1){
    	div1.style.display = "block";
    	div2.style.display = "none";
    	div3.style.display = "none";
    	div4.style.display = "none";
	}
	else if(show_div == 2){
    	div1.style.display = "none";
    	div2.style.display = "block";
    	div3.style.display = "none";
    	div4.style.display = "none";
	}
	else if(show_div == 3){
    	div1.style.display = "none";
    	div2.style.display = "none";
    	div3.style.display = "block";
    	div4.style.display = "none";
	}
	else if(show_div == 4){
    	div1.style.display = "none";
    	div2.style.display = "none";
    	div3.style.display = "none";
    	div4.style.display = "block";
	}
}