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


function initLabels() {
    var labels = document.getElementsByTagName("label");
	var i;
    for(i = 0; i < labels.length; i++) {
		labels[i].onclick = labelFocus;
    }
}

function labelFocus() {
	document.getElementById(this.getAttribute('for')).focus();
}

addLoadEvent(initLabels);