var toggles = [];
var blocks = [];

function loadDefault(blockId, toggleId){
    if(toggles.length == 0){
	toggles.push(document.getElementById(toggleId));
	blocks.push(document.getElementById(blockId));
    }
}

function toggleBlock(blockId, toggle){
    block = document.getElementById(blockId);
    toggles.push(toggle);
    blocks.push(block);
    for (var i = 0; i < toggles.length; i++){
	toggles[i].style.color = '#FF9933';
	blocks[i].style.display = 'none';
    }
    toggle.style.color = 'white';
    block.style.display = 'block';
}