var wait = true;

function grad() {

		if(document.getElementById("Gradcategories").style.display == "none" || document.getElementById("Gradcategories").style.display == "") {
			document.getElementById("Gradcategories").style.display = "block";

			document.getElementById("UnderGradcategories").style.display = "none";
			document.getElementById("researchcategories").style.display = "none";
			document.getElementById("peoplecategories").style.display = "none";
			document.getElementById("alumnicategories").style.display = "none";
			
		} 

		else {
			document.getElementById("Gradcategories").style.display = "none";}
	}

function under() {

		if(document.getElementById("UnderGradcategories").style.display == "none" || document.getElementById("UnderGradcategories").style.display == "") {
			document.getElementById("UnderGradcategories").style.display = "block";

			document.getElementById("Gradcategories").style.display = "none";
			document.getElementById("researchcategories").style.display = "none";
			document.getElementById("peoplecategories").style.display = "none";
			document.getElementById("alumnicategories").style.display = "none";

		} 
		
		else {
			document.getElementById("UnderGradcategories").style.display = "none";}
	}

function research() {

		if(document.getElementById("researchcategories").style.display == "none" || document.getElementById("researchcategories").style.display == "") {
			document.getElementById("researchcategories").style.display = "block";

			document.getElementById("Gradcategories").style.display = "none";
			document.getElementById("UnderGradcategories").style.display = "none";
			document.getElementById("peoplecategories").style.display = "none";
			document.getElementById("alumnicategories").style.display = "none";

		}
		
		 else {
			document.getElementById("researchcategories").style.display = "none";}
	}
	
function people() {

		if(document.getElementById("peoplecategories").style.display == "none" || document.getElementById("peoplecategories").style.display == "") {
			document.getElementById("peoplecategories").style.display = "block";

			document.getElementById("Gradcategories").style.display = "none";
			document.getElementById("UnderGradcategories").style.display = "none";
			document.getElementById("researchcategories").style.display = "none";
			document.getElementById("alumnicategories").style.display = "none";

		}
		
		 else {
			document.getElementById("peoplecategories").style.display = "none";}
	}

function alumni() {

		if(document.getElementById("alumnicategories").style.display == "none" || document.getElementById("alumnicategories").style.display == "") {
			document.getElementById("alumnicategories").style.display = "block";

			document.getElementById("Gradcategories").style.display = "none";
			document.getElementById("UnderGradcategories").style.display = "none";
			document.getElementById("researchcategories").style.display = "none";
			document.getElementById("peoplecategories").style.display = "none";

		}
		
		 else {
			document.getElementById("alumnicategories").style.display = "none";}
	}