function val_amount(val)
{
	amt 	= '';
	regType = document.getElementById("regType").value;
	//alert(regType);
	
	if(regType == 'earlyBird')
		amt = 1000 ;
	
	if(regType == 'regular')
		amt = 1500 ;

	if(regType == 'lateFee')
		amt = 1750 ;


	document.getElementById("val_attendaroup").innerHTML = '';
	document.getElementById('en_attendgroup').selectedIndex  = 0 ;
	//alert(val); amount_pay
	
	
	
	if(val == 'Speker')
	{ 
		document.getElementById("pay_type1").checked = false;
		document.getElementById("pay_type2").checked = false;
		document.getElementById("chkop").style.display = "none";
		document.getElementById('price').innerHTML = '0'; 
		document.getElementById('amount_tot').value = '0'; 
		document.getElementById('amount_pay').value = '0'; 
		document.getElementById("en_attendgroup").disabled = true;

		document.getElementById("participateCost").innerHTML = "0";
		document.getElementById("certificateCost").innerHTML = "0";
		
		document.getElementById("cetDis").style.display="none";
		document.getElementById("cTotal0").style.display="none";
		document.getElementById("certificateDisplay").style.display="none";
		document.getElementById("registrationFee").value = 0;
		document.getElementById("certificateFee").value = 0;
		
	}
	else if(val == 'Customer')
	{
		//amt = 1500 ;
		document.getElementById("chkop").style.display="block";
		document.getElementById('price').innerHTML = amt; 
		document.getElementById('amount_tot').value = amt; 

		document.getElementById("en_attendgroup").disabled=false;
		document.getElementById('amount').value = amt; 
		document.getElementById('amount_pay').value = amt; 

		attendgroup(9);
		document.getElementById('en_attendgroup').selectedIndex  = 1 ;		
		
		document.getElementById("participateCost").innerHTML = amt + " ("+amt+" * 1)";
		document.getElementById("certificateCost").innerHTML = "0";
		
		document.getElementById("cetDis").style.display="block";
		document.getElementById("cTotal0").style.display="none";
		document.getElementById("certificateDisplay").style.display="none";
		document.getElementById("registrationFee").value = amt;
		document.getElementById("certificateFee").value = 0;
		
	}
	else if(val == 'Last Year Attendee')
	{
		amt = (amt - 500);
		document.getElementById("chkop").style.display="block";
		document.getElementById('price').innerHTML = amt; 
		document.getElementById('amount_tot').value = amt; 

		document.getElementById("en_attendgroup").disabled=true;
		document.getElementById('amount').value = amt; 
		document.getElementById('amount_pay').value = amt; 

		document.getElementById("participateCost").innerHTML = amt + " ("+amt+" * 1)";
		document.getElementById("certificateCost").innerHTML = "0";
		// certification not display (none)
		document.getElementById("cetDis").style.display="block";
		document.getElementById("cTotal0").style.display="none";
		document.getElementById("certificateDisplay").style.display="block";
		document.getElementById('certificat0').checked = false;
		document.getElementById('certificat1').checked = false;
		
		document.getElementById("registrationFee").value = amt;
		document.getElementById("certificateFee").value = 0;
		
	}
	else if(val == 'Business Partner')
	{
		document.getElementById("chkop").style.display="block";
		document.getElementById('price').innerHTML = amt; 
		document.getElementById('amount_tot').value = amt; 
		
		document.getElementById("en_attendgroup").disabled=false;
		document.getElementById('amount').value = amt; 
		document.getElementById('amount_pay').value = amt; 

		document.getElementById("participateCost").innerHTML = amt + " ("+amt+" * 1)";
		document.getElementById("certificateCost").innerHTML = "0";
		
		document.getElementById("cetDis").style.display="block";
		document.getElementById("cTotal0").style.display="none";
		document.getElementById("certificateDisplay").style.display="none";
		document.getElementById('certificat0').checked = false;
		document.getElementById('certificat1').checked = false;
		document.getElementById("registrationFee").value = amt;
		document.getElementById("certificateFee").value = 0;
		
		attendgroup(9);
		document.getElementById('en_attendgroup').selectedIndex  = 1 ;		
		
	}
	else if(val == 'IBM Employee')
	{
		amt = 750 ;
		document.getElementById("chkop").style.display="block";
		document.getElementById('price').innerHTML = amt; 
		document.getElementById('amount_tot').value = amt; 
		
		document.getElementById("en_attendgroup").disabled=true;
		document.getElementById('amount').value = amt; 
		document.getElementById('amount_pay').value = amt; 

		document.getElementById("participateCost").innerHTML = amt + " ("+amt+" * 1)";
		document.getElementById("certificateCost").innerHTML = "0";
		
		document.getElementById("cetDis").style.display="none";
		document.getElementById("cTotal0").style.display="none";
		document.getElementById("certificateDisplay").style.display="none";
		document.getElementById("registrationFee").value = amt;
		document.getElementById("certificateFee").value = 0;
		
	}
	else if(val == 'RUG Member')
	{
		amt = 1000 ;
		document.getElementById("chkop").style.display="block";
		document.getElementById('price').innerHTML = amt; 
		document.getElementById('amount_tot').value = amt; 
		
		document.getElementById("en_attendgroup").disabled=true;
		document.getElementById('amount').value = amt; 
		document.getElementById('amount_pay').value = amt; 

		document.getElementById("participateCost").innerHTML = amt + " ("+amt+" * 1)";
		document.getElementById("certificateCost").innerHTML = "0";
		// certification not display (none)
		
		document.getElementById("cetDis").style.display="block";
		document.getElementById("cTotal0").style.display="none";
		document.getElementById("certificateDisplay").style.display="block";
		document.getElementById('certificat0').checked = false;
		document.getElementById('certificat1').checked = false;

		document.getElementById("registrationFee").value = amt;
		document.getElementById("certificateFee").value = 0;
	}
	else
	{
		document.getElementById("chkop").style.display = "none";
		document.getElementById('price').innerHTML = '0';
		document.getElementById('amount_tot').value = '0'; 
		document.getElementById('amount_pay').value = '0'; 
		document.getElementById("en_attendgroup").disabled=false;

		document.getElementById("participateCost").innerHTML = "0";
		document.getElementById("certificateCost").innerHTML = "0";
		document.getElementById("certificateDisplay").style.display="none";

		document.getElementById("cetDis").style.display="none";
		document.getElementById("cTotal0").style.display="none";

		
		document.getElementById("registrationFee").value = 0;
		document.getElementById("certificateFee").value = 0;
		
	}
	

}
function calculatPrice()
{
	n = document.getElementById('en_attendgroup').value;

	if(n == 9)
	  discount = 0 ;
	else if(n == 19)
	  discount = 200 ;
	else if(n == 29)
	  discount = 300 ;
	else if(n == 49)
	  discount = 400 ;
	else if(n == 59)
	  discount = 500 ;
	else
		discount = 0 ;
	

	if( document.getElementById('en_attendgroup').value != '')
	{
		//var clen = document.frm1.elements["attendee_certificat[]"];
		//var clenNo = clen.length;
		var clenNo = document.getElementById('en_attendgroup').value;
		var cNo = 0;
		for(i=0; i <= clenNo; i++)
		{
			aa = "attendee_certificat"+i;
			bb = "acTotal"+i;

			cc = "attendee_certificatTotal"+i;
			
			if(document.getElementById(aa).checked == true)
			{
				cNo = cNo + 1;
				document.getElementById(bb).style.display = "block";

				if(document.getElementById(cc).checked == false)
					cNo 	= cNo + 1;
				//alert(cNo);


			}
			else
			{
				document.getElementById(bb).style.display = "none";
			}

		}
	
		var cAmount = 0 ;
		for(i=1; i<=cNo; i++)
		{
			cAmount = cAmount + 500;
		}
	}
	else
	{
		vv = document.getElementById('certificat0').checked;
		if(vv == false)
		{
			var cNo 	= 0;
			var cAmount = 0 ;
			document.getElementById('cTotal0').style.display = "none";
		}
		else
		{
			var cAmount = 500 ;

			if(document.getElementById('certificatTotal0').checked == true)
				var cNo 	= 1;
			else
				var cNo 	= 2;
			
			cAmount = cAmount * cNo;
			
			if(document.getElementById('en_attendtype').value == 'Customer' || 
			   document.getElementById('en_attendtype').value == 'Last Year Attendee' || 
			   document.getElementById('en_attendtype').value == 'RUG Member' )
				document.getElementById('cTotal0').style.display = "block";
			else
				document.getElementById('cTotal0').style.display = "none";	

			
			
		}
	}
	//alert(cNo);
	//alert(cAmount);
	
	
	
	var id 		= "attendee_name";
	var price 	= document.getElementById('amount_pay').value;
	var totPro 	= 1;
	var totPrice= 0;
	for(i=1; i<=n; i++)
	{
 		id="attendee_name"+i;
		if(ltrim(document.getElementById(id).value))
		{
 			totPro = totPro+1;
 		}
	}
	
	
	price 	= price - discount;
	disamt	= price;
	//alert(price);
	totPrice= price*totPro;
	pCost	= totPrice;
	
	price 	= (price*totPro).toFixed(2);
	
	
	totPrice= totPrice + cAmount;
	
	if(totPrice != "")
		document.getElementById("chkop").style.display="block";
	else
		document.getElementById("chkop").style.display="none";
	//alert(totPrice);
	//alert(amount);
	//document.getElementById("amount_pay").value=totPrice;
	document.getElementById("price").innerHTML = totPrice;
	document.getElementById("amount").value = totPrice;
	document.getElementById("amount_tot").value = totPrice;
	
	document.getElementById("participateCost").innerHTML = pCost + " ("+ disamt+" * " + totPro + ")";
	document.getElementById("certificateCost").innerHTML = cAmount + " (500 * " + cNo + ")";
	
	document.getElementById("registrationFee").value = pCost;
	document.getElementById("certificateFee").value = cAmount;
	
//alert(price)
}


	function ltrim(str) 
	{ 
		for(var k = 0; k < str.length && isWhitespace(str.charAt(k)); k++);
			return str.substring(k, str.length);
	}
	function rtrim(str) 
	{
		for(var j=str.length-1; j>=0 && isWhitespace(str.charAt(j)) ; j--) ;
			return str.substring(0,j+1);
	}
	function trim(str) 
	{
			return ltrim(rtrim(str));
	}
	function isWhitespace(charToCheck) 
	{
			var whitespaceChars = " \t\n\r\f";
			return (whitespaceChars.indexOf(charToCheck) != -1);
	}