function previousSlide(){var currentSlide=document.slideForm.currentSlide.value;if(currentSlide>0){currentSlide--;}else{currentSlide=2;}
changeLearnMoreBox(currentSlide);}
function nextSlide(){var currentSlide=document.slideForm.currentSlide.value;if(currentSlide<2){currentSlide++;}else{currentSlide=0;}
changeLearnMoreBox(currentSlide);}

if (document.images)
{
  pic1= new Image(); 
  pic1.src="/images/buttons_02.png"; 
  pic2= new Image(); 
  pic2.src="/images/buttons_04.png"; 
  pic3= new Image(); 
  pic3.src="/images/buttons_05.png"; 
  pic4= new Image(); 
  pic4.src="/images/buttons_10.png"; 
  pic5= new Image(); 
  pic5.src="/images/buttons_11.png"; 
  pic6= new Image(); 
  pic6.src="/images/buttons_12.png"; 
 
}


function changeLearnMoreBox(slideID){var slideText=new Array();
slideText[0]=new Array("0","-30");
slideText[2]=new Array("0","949");
slideText[1]=new Array("0","457");
document.getElementById('learnMoreBox').style.backgroundPosition=""+slideText[slideID][0]+"px "+slideText[slideID][1]+"px";
//using hgr
if(slideID != "1" && slideID != "2"){
	document.getElementById('b_usinghgr').src = pic4.src;
} else {
	document.getElementById('b_usinghgr').src = pic3.src;
}
//how to search
if(slideID == "1"){
	document.getElementById('b_howtosearch').src = pic5.src;
} else {
	document.getElementById('b_howtosearch').src = pic1.src;
}
//how to review
if(slideID == "2"){
	document.getElementById('b_howtoreview').src = pic6.src;
} else {
	document.getElementById('b_howtoreview').src = pic2.src;
}

document.slideForm.currentSlide.value=slideID;}
changeLearnMoreBox(0);

function previousReview(){var currentReview=document.slideForm.currentReview.value;if(currentReview>0){currentReview--;}else{currentReview=5;}
changeReviewBox(currentReview);}


function prevReview(){var currentReview=document.slideForm.currentReview.value;if(currentReview>0){currentReview--;}else{currentReview=1;}
changeReviewBox(currentReview);}

function nextReview(){var currentReview=document.slideForm.currentReview.value;if(currentReview<1){currentReview++;}else{currentReview=0;}
changeReviewBox(currentReview);}




var t;
var timer_is_on=0;

function timedCount()
{
	if(timer_is_on == 1){
		//alert("set");
		nextSlide();
		t=setTimeout("timedCount()",6000);
	} else {
		//alert("cleared");
		clearTimeout(t);
	}
}

function doTimer()
{
	timer_is_on=1;
	t=setTimeout("timedCount()",6000);
  
}
doTimer();