/*
Place it in html file inside <head>...</head> 
	<script language="JavaScript">
		//here you place the ids of every element you want.
		var ids=new Array('a1','a2','a3','a4');
	</script>
	<script type="text/javascript" src="/js/div1.js"></script>
and then

<a href="javascript:switchid('a1');">title1</a> |
<a href="javascript:switchid('a2');">title2</a>
etc..

<div id='a1' style="display:block;">
	...
</div>

<div id='a2' style="display:none;">
...
</div>

etc...
*/

//here you place the ids of every element you want.
//var ids=new Array('a1','a2','a3','a4');

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
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'none';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'none';
		}
		else { // IE 4
			document.all.id.style.display = 'none';
		}
	}
}

function showdiv(id) {
	//safe function to show an element with a specified id
		  
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'block';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'block';
		}
		else { // IE 4
			document.all.id.style.display = 'block';
		}
	}
}
