function showHide(elementId, whichId){
	var which;
	var element;

	if (document.getElementById) 
		which = document.getElementById(whichId); 
	else if (document.all) 
		which = document.all[whichId]; 
	else if (document.layers) 
		which = document.layers[whichId];

	if (document.getElementById) 
        element = document.getElementById(elementId); 
    else if (document.all) 
        element = document.all[elementId]; 
    else if (document.layers) 
        element = document.layers[elementId];

	if (element && element.style) {
		if(which.checked==true)
			element.style.display = (element.style.display != 'inline')? 'inline' : 'none';
		else
			element.style.display = (element.style.display != 'none')? 'none' : 'inline';
	}
}

function hideElement (elementId) {
	var element;

	if (document.getElementById) 
        element = document.getElementById(elementId); 
    else if (document.all) 
        element = document.all[elementId]; 
    else if (document.layers) 
        element = document.layers[elementId];

	if (element && element.style)
		element.style.display = 'none';
}

function showElement (elementId) {
	var element;

	if (document.getElementById) 
        element = document.getElementById(elementId); 
    else if (document.all) 
        element = document.all[elementId]; 
    else if (document.layers) 
        element = document.layers[elementId];

	if (element && element.style)
		element.style.display = '';
}