function sliderimgchg(i)
{ 
	  document.getElementById('sliderimg1').src  = "images/bt1.png";
	  document.getElementById('sliderimg2').src  = "images/bt1.png";
	  document.getElementById('sliderimg3').src  = "images/bt1.png";
	  document.getElementById('sliderimg4').src  = "images/bt1.png";
	   document.getElementById('sliderimg5').src  = "images/bt1.png";
	  document.getElementById('sliderimg'+i).src = "images/bt2.png";
}

function step1()
{
	document.getElementById('first').style.display = "block";
	document.getElementById('second').style.display = "none";
	document.getElementById('third').style.display = "none";
	document.getElementById('forth').style.display = "none";
	document.getElementById('fifth').style.display = "none";
}

function step2()
{
	document.getElementById('first').style.display = "none";
	document.getElementById('second').style.display = "block";
	document.getElementById('third').style.display = "none";
	document.getElementById('forth').style.display = "none";
	document.getElementById('fifth').style.display = "none";
}

function step3()
{
	document.getElementById('first').style.display = "none";
	document.getElementById('second').style.display = "none";
	document.getElementById('third').style.display = "block";
	document.getElementById('forth').style.display = "none";
	document.getElementById('fifth').style.display = "none";
}

function step4()
{
	document.getElementById('first').style.display = "none";
	document.getElementById('second').style.display = "none";
	document.getElementById('third').style.display = "none";
	document.getElementById('forth').style.display = "block";
	document.getElementById('fifth').style.display = "none";
}

function step5()
{
	document.getElementById('first').style.display = "none";
	document.getElementById('second').style.display = "none";
	document.getElementById('third').style.display = "none";
	document.getElementById('forth').style.display = "none";
	document.getElementById('fifth').style.display = "block";
}