function switchDescription(element)
	{
		document.getElementById('desc_1').style.display = "none";
		document.getElementById('desc_2').style.display = "none";
		document.getElementById('desc_3').style.display = "none";
		document.getElementById('desc_4').style.display = "none";
		document.getElementById('desc_5').style.display = "none";
		document.getElementById('desc_6').style.display = "none";
		document.getElementById('desc_7').style.display = "none";
		document.getElementById('desc_8').style.display = "none";
		document.getElementById(element).style.display = "block";
		
		document.getElementById('desc_1Arrow').style.display = "none";
		document.getElementById('desc_2Arrow').style.display = "none";
		document.getElementById('desc_3Arrow').style.display = "none";
		document.getElementById('desc_4Arrow').style.display = "none";
		document.getElementById('desc_5Arrow').style.display = "none";
		document.getElementById('desc_6Arrow').style.display = "none";
		document.getElementById('desc_7Arrow').style.display = "none";
		document.getElementById('desc_8Arrow').style.display = "none";
		document.getElementById(element+'Arrow').style.display = "inline";
		
	}