//Constants
var numOfPages = 89; //Including the index page

function previousPage(currentPage) {
	var pageName = "default.aspx";
	var currentPageNum = 0;

	//Break the URL into pieces
	var tmp = currentPage.split("page");

	//If the delimiter "page" wasn't found, then this must be the default.aspx
	if (tmp.length <= 1)
		currentPageNum = numOfPages + 1;
	else
		currentPageNum = parseInt(tmp[1]);

	//Calculate the next page
	currentPageNum++;
	if ((currentPageNum <= 0) || (currentPageNum > numOfPages))
		pageName = "default.aspx";
	else 
		pageName = "page" + currentPageNum + ".aspx";

	return "http://www.guitarmatch.com/family/" + pageName;
}

function nextPage(currentPage) {
	var pageName = "default.aspx";
	var currentPageNum = 0;

	//Break the URL into pieces
	var tmp = currentPage.split("page");

	//If the delimiter "page" wasn't found, then this must be the default.aspx
	if (tmp.length <= 1)
		currentPageNum = numOfPages + 1;
	else
		currentPageNum = parseInt(tmp[1]);

	//Calculate the previous page
	currentPageNum--;
	if ((currentPageNum < 0) || (currentPageNum > numOfPages)) {
		pageName = "default.aspx";
	}
	else if (currentPageNum == 0) {
		pageName = "page1.aspx";
	}
	else {
		pageName = "page" + currentPageNum + ".aspx";
	}

	return "http://www.guitarmatch.com/family/" + pageName;
}