function validate()
{
		if(document.form_feedback.usr_name.value == "")
		{
			alert("Name field is mandatory");
			document.form_feedback.usr_name.focus();
			return false;
		}
	
		if(document.form_feedback.org.value == "")
		{
			alert("Organisation field is mandatory");
			document.form_feedback.org.focus();
			return false;
		}

		if(document.form_feedback.activity.value == "")
		{
			alert("Activity field is mandatory");
			document.form_feedback.activity.focus();
			return false;
		}

		
		if(document.form_feedback.desig.value == "")
		{
			alert("Designation field is mandatory");
			document.form_feedback.desig.focus();
			return false;
		}


		
		if(document.form_feedback.usr_address.value == "")
		{
			alert("Address field is mandatory");
			document.form_feedback.usr_address.focus();
			return false;
		}	
	
		
		if(document.form_feedback.pin.value == "")
		{
			alert("Pin field is mandatory");
			document.form_feedback.pin.focus();
			return false;
		}
		
				
		if (document.form_feedback.email.value.indexOf("@") == -1 || document.form_feedback.email.value.indexOf(".") == -1)
  		{
		    alert("Please enter a valid e-mail address.");
		   document.form_feedback.email.focus();
		    return false;
  		}		 
	
	
		
		if(document.form_feedback.tel_phone.value == "")
		{
			alert("Telephone field is mandatory");
			document.form_feedback.tel_phone.focus();
			return false;
		}
		
			
}

function check_pin()
{
	
	if(event.srcElement.name == "pin")
	{
	
		if((event.keyCode<47 || event.keyCode>57)
		&& event.keyCode!=32
		&& event.keyCode!=45
		&& event.keyCode!=8)
		
		{
			alert("Enter Valid Pin Number except any character");
			document.form_feedback.pin.focus();
			return false;
		}
	}
	
}


function check_telphone()
{
	
	if(event.srcElement.name == "tel_phone")
	{
	
		if((event.keyCode<47 || event.keyCode>57)
		&& event.keyCode!=32
		&& event.keyCode!=45
		&& event.keyCode!=8)
		
		
		{
			alert("Enter Valid Telphone Number except any character");
			document.form_feedback.tel_phone.focus();
			return false;
		}
	}
	
}

function check_fax()
{
	
	if(event.srcElement.name == "fax")
	{
	
		if((event.keyCode<47 || event.keyCode>57)
		&& event.keyCode!=32
		&& event.keyCode!=45
		&& event.keyCode!=8)
		
		
		{
			alert("Enter Valid Fax Number except any character");
			document.form_feedback.fax.focus();
			return false;
		}
	}
	
}