var ids=new Array('intro','p2p', 'o2c' ,'tech', 'faculty', 'training', 'online');

function switchid(id){	
	hideallids();
	showdiv(id);
}


function hideallids(){
	//loop through the array and hide each element by id
	for (var i=0;i<ids.length;i++){
		hidediv(ids[i]);
	}		
}

function hidediv(id) {
	//safe function to hide an element with a specified id
	var divname = 'list'+id;
	
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(divname).style.display = 'none';
		var click_id = "click_"+id;
		document.getElementById(click_id).className = 'listlink';
	}
	else {
		if (document.layers) { // Netscape 4
			document.divname.display = 'none';
			var click_id = "click_"+id;
			document.click_id.className = 'listlink';
		}
		else { // IE 4
			document.all.divname.style.display = 'none';
			var click_id = "click_"+id;
			document.all.click_id.className = 'listlink';
		}
	}
}

function showdiv(id) {
	//safe function to show an element with a specified id
	var divname = 'list'+id;
		
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(divname).style.display = 'block';
		var click_id = "click_"+id;
		document.getElementById(click_id).className = 'sellink';
		
	}
	else {
		if (document.layers) { // Netscape 4
			document.divname.display = 'block';
			var click_id = "click_"+id;
			document.click_id.className = 'sellink';
		}
		else { // IE 4
			document.all.divname.style.display = 'block';
			var click_id = "click_"+id;
			document.all.click_id.className = 'sellink';
		}
	}
}