/*
________________________________________________________________________________________
*	changepage.js
*   
*	Change the page displayed in the iframe on the artist profile page
*   
*	VERSION 1.01.TD		29/03/09
*   
*	(c) 2009 Audio Gem Music Ltd
________________________________________________________________________________________
*/


	var currentpage = 1;
	var totalpages = 4;

	function changepage(direction)
	{
		switch (direction)
		{
			case 'next':
			if (currentpage < totalpages)
			{
				// Make current page invisible
				document.getElementById("aboutpage" + currentpage).style.display="none";
				// Display next page
				currentpage ++;
				document.getElementById("aboutpage" + currentpage).style.display="block";
			}
				
				
			// Make previous icon visible if on page 2 or above
			if (currentpage > 1)
			{
				document.getElementById("previous_icon").style.visibility="visible";
			}

			// If reached the last page, make next icon invisible
			if (currentpage == totalpages)
			{
				document.getElementById("next_icon").style.visibility="hidden";
			}

			break;
		
			case 'previous':
			if (currentpage > 1)
			{
				// Make current page invisible
				document.getElementById("aboutpage" + currentpage).style.display="none";
				// Display next page
				currentpage --;
				document.getElementById("aboutpage" + currentpage).style.display="block";
			}
				
			// Make next icon visible if on page less than last page
			if (currentpage < totalpages)
			{
				document.getElementById("next_icon").style.visibility="visible";
			}

			// If reached the first page, make previous icon invisible
			if (currentpage == 1)
			{
				document.getElementById("previous_icon").style.visibility="hidden";
			}

			break;		
		}
	}