var visibleIMG = null;
var hiddenIMG = null;

function initGlobalVars() {
	visible_div = "main_level_2_processautomation";
}

function switchSmallPict(visiblePict, hiddenPict) {
	var switchElement;

	switchElement = document.getElementById(visiblePict);
	switchElement.style.display = "none";
	switchElement = document.getElementById(hiddenPict);
	switchElement.style.display = "block";
	visibleIMG = hiddenPict;
	hiddenIMG = visiblePict;
}

function revertTechTransparency() {
	if (visibleIMG != null) {
		switchSmallPict(visibleIMG, hiddenIMG);
		visibleIMG = null;
		hiddenIMG = null;
	}
}