// ====================================================================
// setStyleDisplay(whichEl,type)
// Shows or hides any block element.
// If type = 'show' then shows it, else hides it.
// ====================================================================
function setStyleDisplay(whichEl,type)
{
	if( type == "show" ) {
		whichEl.style.display = "block";
	}
	else {
		whichEl.style.display = "none";
	}
}