// JavaScript Document
var flag = "off";
var flag_english = "off";
var flag_computer = "off";

function showDiv(){
	var div = document.getElementById("pr_training");
	if(flag == "off"){
		div.style.display = "block";
		flag = "on";
	}else
	{
		div.style.display = "none";
		flag = "off";
	}
	
	var div1 = document.getElementById("pr_english");
	var div2 = document.getElementById("pr_computer");
	
	div1.style.display = "none";
	div2.style.display = "none";

}

function showDivEnglish(){
	var div = document.getElementById("pr_english");
	var div1 = document.getElementById("pr_computer");
	
	if (div1.style.display = "block") {
		div1.style.display = "none";
	}	
	
	if(flag_english == "off"){
		div.style.display = "block";
		flag_english = "on";
	}else
	{
		div.style.display = "none";
		flag_english = "off";
	}
}

function showDivComputer(){
	var div = document.getElementById("pr_computer");
	var div1 = document.getElementById("pr_english");
	
	if (div1.style.display = "block") {
		div1.style.display = "none";
	}

	if(flag_computer == "off"){
		div.style.display = "block";
		flag_computer = "on";
	}else
	{
		div.style.display = "none";
		flag_computer = "off";
	}
}