function addLoadEvent(func) {
    var oldonload = window.onload;
    if (typeof window.onload != 'function') {
        window.onload = func;
    } else {
        window.onload = function() {
            oldonload();
            func();
        }
    }
}

addLoadEvent(registerToggleBoxes);

// Deal with IE
if (document.all) {
	var theClass = "className";
} else {
	var theClass = "class";
}

function registerToggleBoxes()  {

	// Get links
	var links = document.getElementsByTagName("a");
	var aNum = 0;
	while (aNum < links.length) {

		var aClass = links[aNum].getAttribute(theClass);
		//Prepares minussign for click
		if (aClass == "linkminus") {
			snapBox(links[aNum]);
		}
		aNum++;
	}

}

//  Will toggle boxes
function snapBox(link) {
	var par1 = link.parentNode;
	var par2 = par1.parentNode;
	var par3 = par2.parentNode;
	var par4 = par3.parentNode;
	var par5 = par4.parentNode;
	var par6 = par5.parentNode;
	
	link.setAttribute(theClass,"linkplus");
	
	var divs = par6.getElementsByTagName("div");
	var divNum = 0;
	
	// Checks for the first div with snap as a class
	while (divs[divNum].getAttribute(theClass) != "snap") {
		divNum++;
	}
	// Changes display
	divs[divNum].style.display = "none";
	
	// If the sign is clicked again
	link.onclick = function() {
		//Content appears again
		divs[divNum].style.display = "";
		link.setAttribute(theClass,"linkminus");
		// Reprepare if for reclick
		resnapLink(this)
		return false;
	}
}

// Will make it toggle if clicked again
function resnapLink(link) {
	link.onclick = function() {
		
		snapBox(this);
		return false;
	}
}