function toggleContact(callingObject, targetObjectId) {
    if (document.getElementById(targetObjectId).className == "contact hidden") {
	document.getElementById(targetObjectId).className = "contact";
	callingObject.className = "contactLinkActive"
    }
    else {
	document.getElementById(targetObjectId).className = "contact hidden";
	callingObject.className = "contactLink";
    }
}