var currentpage=1;
function clearNavPageBar()
{
	if (currentpage==1) {
		document.getElementById("pageNav1").src="images/booknav1.gif";
		}
	else if (currentpage==2) {
		document.getElementById("pageNav2").src="images/booknav2.gif";
		}
	else if (currentpage==3) {
		document.getElementById("pageNav3").src="images/booknav3.gif";
		}
	else if (currentpage==4) {
		document.getElementById("pageNav4").src="images/booknav4.gif";
		}
	else if (currentpage==5) {
		document.getElementById("pageNav5").src="images/booknav5.gif";
		}
	else if (currentpage==6) {
		document.getElementById("pageNav6").src="images/booknav6.gif";
		}
	else if (currentpage==7) {
		document.getElementById("pageNav7").src="images/booknav7.gif";
		}
	else if (currentpage==8) {
		document.getElementById("pageNav8").src="images/booknav8.gif";
		}
	else if (currentpage==9) {
		document.getElementById("pageNav9").src="images/booknav9.gif";
		}
	else if (currentpage==10) {
		document.getElementById("pageNav10").src="images/booknav10.gif";
		}
	else if (currentpage==11) {
		document.getElementById("pageNav11").src="images/booknav11.gif";
		}
}
function changeimage(page)
{
	if (page==1) 
	{
		if (currentpage!=1) {
			document.getElementById("pageImage").src=pageOne;
			document.getElementById("pageNav1").src="images/booknav1_over.gif";
			clearNavPageBar();
			currentpage=1;
		}
	}
	else if (page==2)
	{
		if (currentpage!=2) {
			document.getElementById("pageImage").src=pageTwo;
			document.getElementById("pageNav2").src="images/booknav2_over.gif";
			clearNavPageBar();
			currentpage=2;
		}
	}
	else if (page==3)
	{
		if (currentpage!=3) {
			document.getElementById("pageImage").src=pageThree;
			document.getElementById("pageNav3").src="images/booknav3_over.gif";
			clearNavPageBar();
			currentpage=3;
		}
	}
	else if (page==4)
	{
		if (currentpage!=4) {
			document.getElementById("pageImage").src=pageFour;
			document.getElementById("pageNav4").src="images/booknav4_over.gif";
			clearNavPageBar();
			currentpage=4;
		}
	}
	else if (page==5)
	{
		if (currentpage!=5) {
			document.getElementById("pageImage").src=pageFive;
			document.getElementById("pageNav5").src="images/booknav5_over.gif";
			clearNavPageBar();
			currentpage=5;
		}
	}
	else if (page==6)
	{
		if (currentpage!=6) {
			document.getElementById("pageImage").src=pageSix;
			document.getElementById("pageNav6").src="images/booknav6_over.gif";
			clearNavPageBar();
			currentpage=6;
		}
	}
	else if (page==7)
	{
		if (currentpage!=7) {
			document.getElementById("pageImage").src=pageSeven;
			document.getElementById("pageNav7").src="images/booknav7_over.gif";
			clearNavPageBar();
			currentpage=7;
		}
	}
	else if (page==8)
	{
		if (currentpage!=8) {
			document.getElementById("pageImage").src=pageEight;
			document.getElementById("pageNav8").src="images/booknav8_over.gif";
			clearNavPageBar();
			currentpage=8;
		}
	}
	else if (page==9)
	{
		if (currentpage!=9) {
			document.getElementById("pageImage").src=pageNine;
			document.getElementById("pageNav9").src="images/booknav9_over.gif";
			clearNavPageBar();
			currentpage=9;
		}
	}
	else if (page==10)
	{
		if (currentpage!=10) {
			document.getElementById("pageImage").src=pageTen;
			document.getElementById("pageNav10").src="images/booknav10_over.gif";
			clearNavPageBar();
			currentpage=10;
		}
	}
	else if (page==11)
	{
		if (currentpage!=11) {
			document.getElementById("pageImage").src=pageEleven;
			document.getElementById("pageNav11").src="images/booknav11_over.gif";
			clearNavPageBar();
			currentpage=11;
		}
	}
}
function changeover(page)
{
	if (page==1) 
	{
		if (currentpage!=1) {
			document.getElementById("pageNav1").src="images/booknav1_over.gif";
		}
	}
	else if (page==2)
	{
		if (currentpage!=2) {
			document.getElementById("pageNav2").src="images/booknav2_over.gif";
		}
	}
	else if (page==3)
	{
		if (currentpage!=3) {
			document.getElementById("pageNav3").src="images/booknav3_over.gif";
		}
	}
	else if (page==4)
	{
		if (currentpage!=4) {
			document.getElementById("pageNav4").src="images/booknav4_over.gif";
		}
	}
	else if (page==5)
	{
		if (currentpage!=5) {
			document.getElementById("pageNav5").src="images/booknav5_over.gif";
		}
	}
	else if (page==6)
	{
		if (currentpage!=6) {
			document.getElementById("pageNav6").src="images/booknav6_over.gif";
		}
	}
	else if (page==7)
	{
		if (currentpage!=7) {
			document.getElementById("pageNav7").src="images/booknav7_over.gif";
		}
	}
	else if (page==8)
	{
		if (currentpage!=8) {
			document.getElementById("pageNav8").src="images/booknav8_over.gif";
		}
	}
	else if (page==9)
	{
		if (currentpage!=9) {
			document.getElementById("pageNav9").src="images/booknav9_over.gif";
		}
	}
	else if (page==10)
	{
		if (currentpage!=10) {
			document.getElementById("pageNav10").src="images/booknav10_over.gif";
		}
	}
	else if (page==11)
	{
		if (currentpage!=11) {
			document.getElementById("pageNav11").src="images/booknav11_over.gif";
		}
	}
}
function changeback(page)
{
	if (page==1) 
	{
		if (currentpage!=1) {
			document.getElementById("pageNav1").src="images/booknav1.gif";
		}
	}
	else if (page==2)
	{
		if (currentpage!=2) {
			document.getElementById("pageNav2").src="images/booknav2.gif";
		}
	}
	else if (page==3)
	{
		if (currentpage!=3) {
			document.getElementById("pageNav3").src="images/booknav3.gif";
		}
	}
	else if (page==4)
	{
		if (currentpage!=4) {
			document.getElementById("pageNav4").src="images/booknav4.gif";
		}
	}
	else if (page==5)
	{
		if (currentpage!=5) {
			document.getElementById("pageNav5").src="images/booknav5.gif";
		}
	}
	else if (page==6)
	{
		if (currentpage!=6) {
			document.getElementById("pageNav6").src="images/booknav6.gif";
		}
	}
	else if (page==7)
	{
		if (currentpage!=7) {
			document.getElementById("pageNav7").src="images/booknav7.gif";
		}
	}
	else if (page==8)
	{
		if (currentpage!=8) {
			document.getElementById("pageNav8").src="images/booknav8.gif";
		}
	}
	else if (page==9)
	{
		if (currentpage!=9) {
			document.getElementById("pageNav9").src="images/booknav9.gif";
		}
	}
	else if (page==10)
	{
		if (currentpage!=10) {
			document.getElementById("pageNav10").src="images/booknav10.gif";
		}
	}
	else if (page==11)
	{
		if (currentpage!=11) {
			document.getElementById("pageNav11").src="images/booknav11.gif";
		}
	}
}