function changeTab(tab, guts) {
	if (tab == "nut") {
		document.getElementById(tab).src = "images/tab_" + tab + "_on.gif";
		document.getElementById('ing').src = "images/tab_ing.gif";
		document.getElementById('prep').src = "images/tab_prep.gif";
		
		document.getElementById(guts).style.display = "block";
		document.getElementById('ingredients').style.display = "none";
		document.getElementById('preparation').style.display = "none";
		}
	else if (tab == "ing") {
		document.getElementById(tab).src = "images/tab_" + tab + "_on.gif";
		document.getElementById('nut').src = "images/tab_nut.gif";
		document.getElementById('prep').src = "images/tab_prep.gif";
		
		document.getElementById(guts).style.display = "block";
		document.getElementById('nutrition').style.display = "none";
		document.getElementById('preparation').style.display = "none";
		}
	else if (tab == "prep") {
		document.getElementById(tab).src = "images/tab_" + tab + "_on.gif";
		document.getElementById('nut').src = "images/tab_nut.gif";
		document.getElementById('ing').src = "images/tab_ing.gif";
		
		document.getElementById(guts).style.display = "block";
		document.getElementById('nutrition').style.display = "none";
		document.getElementById('ingredients').style.display = "none";
		}
	}
	
function hideMe(div) {
		document.getElementById(div).style.display = "none";
	}
function showMe(div) {
		document.getElementById(div).style.display = "block";
	}