function isNumberKey(evt)
{
	var charCode = (evt.which) ? evt.which : event.keyCode
	if (charCode > 31 && (charCode < 48 || charCode > 57))
		return false;
	return true;
}

function withoutspecialnumeric(evt)
{              
	var charCode = (evt.which) ? evt.which : event.keyCode
	if((64 < charCode && charCode < 91) || (96 <charCode && charCode< 123) || (charCode==32) || charCode == 8  || charCode == 46)
	{
		return true;
	}else
	{
		return false;      
	}                                                                                                 
}
	
function paper_submission()
{
	if(document.paper_form.name.value.trim() == '')
	{
		$(".error").html('Please enter your name');
		document.paper_form.name.focus();
		$(".error").css("display", "block"); 
		return false;
	} else{
		$(".error").css("display", "none"); 
	}
	if(document.paper_form.name.value.length < 3)
	{
		$(".error").html("Please enter your name in greater than 3 characters.");
		document.paper_form.name.focus();
		$(".error").css("display", "block");
		return false
	} else {
		$(".error").css("display", "none");
	}
	if(document.paper_form.designation.value.trim() == '')
	{
		$(".error").html('Please enter designation.');
		document.paper_form.designation.focus();
		$(".error").css("display", "block"); 
		return false;
	} else{
		$(".error").css("display", "none"); 
	}
	if(document.paper_form.institution.value.trim() == '')
	{
		$(".error").html('Please enter institution.');
		document.paper_form.institution.focus();
		$(".error").css("display", "block"); 
		return false;
	} else{
		$(".error").css("display", "none"); 
	}
	if(document.paper_form.address.value.trim() == '')
	{
		$(".error").html('Please enter address for correspondence.');
		document.paper_form.address.focus();
		$(".error").css("display", "block"); 
		return false;
	} else{
		$(".error").css("display", "none"); 
	}
	if(document.paper_form.address.value.length < 6)
	{
		$(".error").html('Please enter correct address for correspondence.');
		document.paper_form.address.focus();
		$(".error").css("display", "block"); 
		return false;
	} else{
		$(".error").css("display", "none"); 
	}
	if(document.paper_form.phone.value.trim() == '')
	{
		$(".error").html('Please enter your mobile number.');
		document.paper_form.phone.focus();
		$(".error").css("display", "block");
		return false;
	} else{
		$(".error").css("display", "none");
	}
	if(document.paper_form.phone.value.length < 10)
	{
		$(".error").html("Please enter your mobile number greater than or equal to 10 digits");
		document.paper_form.phone.focus();
		$(".error").css("display", "block");
		return false;
	} else{
		$(".error").css("display", "none");
	}
	if(document.paper_form.email_id.value.trim() == '')
	{
		$(".error").html('Please enter email id.');
		document.paper_form.email_id.focus();
		$(".error").css("display", "block");
		return false;
	} else{
		$(".error").css("display", "none");
	}
	if(document.paper_form.email_id.value.trim() != '')
	{
		if (!(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/.test(document.paper_form.email_id.value)))
		{
			$(".error").html('Invalid email id! Please enter the correct email id.');
			document.paper_form.email_id.focus();
			$(".error").css("display", "block");
			return false;
		} else{
			$(".error").css("display", "none");
		}
	}
	if(document.paper_form.title.value.trim() == '')
	{
		$(".error").html('Please upload your title page submission.');
		document.paper_form.title.focus();
		$(".error").css("display", "block"); 
		return false;
	} else{
		$(".error").css("display", "none"); 
	}
	if(document.paper_form.paperabstract.value.trim() == '')
	{
		$(".error").html('Please upload your abstract submission.');
		document.paper_form.paperabstract.focus();
		$(".error").css("display", "block"); 
		return false;
	} else{
		$(".error").css("display", "none"); 
	}
	return true;
}

function registration_submission()
{
	if(document.registration_form.name.value.trim() == '')
	{
		$(".error").html('Please enter your name');
		document.registration_form.name.focus();
		$(".error").css("display", "block"); 
		return false;
	} else{
		$(".error").css("display", "none"); 
	}
	if(document.registration_form.name.value.length < 3)
	{
		$(".error").html("Please enter your name in greater than 3 characters.");
		document.registration_form.name.focus();
		$(".error").css("display", "block");
		return false
	} else {
		$(".error").css("display", "none");
	}
	if(document.registration_form.designation.value.trim() == '')
	{
		$(".error").html('Please enter designation.');
		document.registration_form.designation.focus();
		$(".error").css("display", "block"); 
		return false;
	} else{
		$(".error").css("display", "none"); 
	}
	if(document.registration_form.institution.value.trim() == '')
	{
		$(".error").html('Please enter institution.');
		document.registration_form.institution.focus();
		$(".error").css("display", "block"); 
		return false;
	} else{
		$(".error").css("display", "none"); 
	}
	if(document.registration_form.address.value.trim() == '')
	{
		$(".error").html('Please enter address for correspondence.');
		document.registration_form.address.focus();
		$(".error").css("display", "block"); 
		return false;
	} else{
		$(".error").css("display", "none"); 
	}
	if(document.registration_form.address.value.length < 6)
	{
		$(".error").html('Please enter correct address for correspondence.');
		document.registration_form.address.focus();
		$(".error").css("display", "block"); 
		return false;
	} else{
		$(".error").css("display", "none"); 
	}
	if(document.registration_form.phone.value.trim() == '')
	{
		$(".error").html('Please enter your mobile number.');
		document.registration_form.phone.focus();
		$(".error").css("display", "block");
		return false;
	} else{
		$(".error").css("display", "none");
	}
	if(document.registration_form.phone.value.length < 10)
	{
		$(".error").html("Please enter your mobile number greater than or equal to 10 digits");
		document.registration_form.phone.focus();
		$(".error").css("display", "block");
		return false;
	} else{
		$(".error").css("display", "none");
	}
	if(document.registration_form.email_id.value.trim() == '')
	{
		$(".error").html('Please enter email id.');
		document.registration_form.email_id.focus();
		$(".error").css("display", "block");
		return false;
	} else{
		$(".error").css("display", "none");
	}
	if(document.registration_form.email_id.value.trim() != '')
	{
		if (!(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/.test(document.registration_form.email_id.value)))
		{
			$(".error").html('Invalid email id! Please enter the correct email id.');
			document.registration_form.email_id.focus();
			$(".error").css("display", "block");
			return false;
		} else{
			$(".error").css("display", "none");
		}
	}
	if(document.registration_form.delegate.value.trim() == '')
	{
		$(".error").html('Please select delegate category.');
		document.registration_form.delegate.focus();
		$(".error").css("display", "block"); 
		return false;
	} else{
		$(".error").css("display", "none"); 
	}
	/*if(document.registration_form.registration.value.trim() == '')
	{
		$(".error").html('Please select registration type.');
		document.registration_form.registration.focus();
		$(".error").css("display", "block"); 
		return false;
	} else{
		$(".error").css("display", "none"); 
	}*/
	
	return true;
}