// there's no getElementsByClassName in ie6
var divs = document.getElementsByTagName('div');
for (var i = 0; i < divs.length; i++) {
	var div = divs[i];
	if (div.className != 'dcc')
		continue;
	var hcc = document.getElementById('h_' + div.id.substr(2));
	hcc.onclick = cc(hcc, div);
}

function cc(hcc, dcc) {
	return function() {
		if (hcc.className == 'hcc') {
			hcc.className = 'hco';
			dcc.className = 'dco';
		} else {
			hcc.className = 'hcc';
			dcc.className = 'dcc';
		}
	}
}