function toggle(id, trigger) {
	var el = eval('document.getElementById("'+id+'")');
	var el2 = eval('document.getElementById("'+ trigger + '")');
	el.disabled = !(el2.checked);
}
	
function highLight(id, color) {
	var fields = document.getElementById(id);
	fields.bgColor = color;
}

function checkForm(fields, h_color, n_color) {
	var errors = false;
	for (el in fields) {
		var val = document.getElementById(el);
		val.style.backgroundColor = h_color;
	}
	return FALSE;
}


function hide(el) {
	document.getElementById(el).style.display = 'none';	
}

function show(el) {
	document.getElementById(el).style.display = '';		
}