divs = document.getElementsByTagName('div');

i = 0; while(divs[i]) {
if(divs[i].getAttribute('class') == 'item')
{

	children = divs[i].childNodes;
	j = 0; while(children[j]) {
	att = document.createAttribute('style');
	att.value = 'display:none;';
	if(children[j].nodeType == 1 && children[j].getAttribute('class') != 'heading') {children[j].setAttributeNode(att);}	
	j++;		
	
	}
	

}
i++;
}



h3s = document.getElementsByTagName('h3');
i = 0; while(h3s[i]) {
if(h3s[i].getAttribute('class') == 'heading')
{

h3s[i].onclick = displayFunction;

}
i++;
}

function displayFunction() {


	children = this.parentNode.childNodes;
	j = 0; while(children[j]) {
	if(children[j].nodeType == 1) {
	att = document.createAttribute('style');
	if(children[j].style.display == 'none') { att.value = 'display:block;'; } else {att.value =  'display:none;';}
	if(children[j].getAttribute('class') != 'heading') {children[j].setAttributeNode(att);}
	}
	j++;		
	
	}
		

}