/*	switches the visibility of the passed element
Created by 	[ADRIAN CORCORAN]
Website		[http://www.attikdesigns.ie]
*/
function switchIdVis(elementId)
{
	var num	= 6;
	if (document.getElementById)
	{
		for (i=1; i<=num; i++)
		{
			//	hide all
			document.getElementById('div_pic_' + i + '.jpg').style.visibility='hidden';
		}
		//	display chosen
		document.getElementById('div_' + elementId).style.visibility='visible';
	}
}