function changeClass(act,newimage)
{
document.getElementById('img22').src=newimage;

 document.getElementById('b1').className='';
 document.getElementById('b2').className='';
 document.getElementById('b3').className='';
 document.getElementById('b4').className='';
 document.getElementById('b5').className='';
 document.getElementById(act).className='active';
 //alert(document.getElementById(act).className);
 
}

function changePos(toshow,c){

document.getElementById('box1').style.display='none';
document.getElementById('box2').style.display='none';
document.getElementById('box3').style.display='none';
document.getElementById('box4').style.display='none';
document.getElementById('box5').style.display='none';
document.getElementById(toshow).style.display='block';
 document.getElementById('bb1').className='';
 document.getElementById('bb2').className='';
 document.getElementById('bb3').className='';
 document.getElementById('bb4').className='';
 document.getElementById('bb5').className='';
 document.getElementById(c).className='active';
}
function changePos1(toshow){

document.getElementById('pop1').style.display='none';
document.getElementById('pop2').style.display='none';
document.getElementById('pop3').style.display='none';
document.getElementById(toshow).style.display='block';
}
function changePos2(toshow){
document.getElementById('pop4').style.display='none';
document.getElementById('pop5').style.display='none';
document.getElementById('pop6').style.display='none';
document.getElementById('pop7').style.display='none';
document.getElementById(toshow).style.display='block';
}
function changePos3(){
document.getElementById('pop4').style.display='none';
document.getElementById('pop5').style.display='none';
document.getElementById('pop6').style.display='none';
document.getElementById('pop7').style.display='none';

}

function check2()
{
	//alert(document.form3.sl4.value);
	if(document.form3.sl4.value == "0")
	{
		alert("Please select Climate zone.");
		return false;
	}
	//alert(document.form3.sl4.value);
	if(document.form3.sl4.value == "Composite")
	{
		form3.action = "composite_climate.php";
	}
	else
	{
		alert("Not found.");
		form3.action = "#";
	}
}

function show_add_prog()
{
	document.getElementById('Layer1').style.display='none';
	document.getElementById('Layer2').style.display='none';
	document.getElementById('Layer3').style.display='none';
	document.getElementById('Layer4').style.display='none';
	document.getElementById('Layer5').style.display='none';
	if(document.form3.sl4.value == '1')
	{
		document.getElementById('Layer1').style.display='block';
	}
	else if(document.form3.sl4.value == '2')
	{
		document.getElementById('Layer2').style.display='block';
	}
	else if(document.form3.sl4.value == '3')
	{
		document.getElementById('Layer3').style.display='block';
	}
	else if(document.form3.sl4.value == '4')
	{
		document.getElementById('Layer4').style.display='block';
	}
	else if(document.form3.sl4.value == '5')
	{
		document.getElementById('Layer5').style.display='block';
	}	
	else 
	{
		alert("Please select Climate Zone.");
	}	

}
function check1()
{
	//alert(document.form3.sl4.value);
	if(document.form3.sl4.value == "0")
	{
		alert("Please select Climate zone.");
		return false;
	}
	if(document.form3.build_type.value == "0")
	{
		alert("Please select Building type.");
		return false;
	}
	//alert(document.form3.sl4.value); alert(document.form3.build_type.value);
	if(document.form3.sl4.value == "Composite" && document.form3.build_type.value == "Solar passive")
	{
		form3.action = "tcil.php";
	}
	else if(document.form3.sl4.value == "Warm and Humid" && document.form3.build_type.value == "Solar passive")
	{
		form3.action = "wipro.php";
	}
	else
	{
		alert("No case study found.");
		form3.action = "#";
	}
}