function contact()
{
	var con=document.frm_contact;
	
	if(con.first_name.value == "")
	{
		alert("Please enter first name");
		con.first_name.focus();
		return false;
	}
	else if(con.last_name.value == "")
	{
		alert("Please enter last name");
		con.last_name.focus();
		return false;
	}
	else if(con.email.value == "")
	{
		alert("Please enter email id");
		con.email.focus();
		return false;
	}
	else if((con.email.value.indexOf('@') == -1) || (con.email.value.indexOf('.') == -1))
	{
		alert("Please enter proper email id format");
		con.email.focus();
		return false;
	}
	else if(con.contact_no.value == "")
	{
		alert("Please enter contact no");
		con.contact_no.focus();
		return false;
	}
	else if(con.desc.value == '')
	{
			alert('Please enter description');
			con.desc.focus();
			return false;
	}
	else if(con.desc.value > 250)
	{
		alert('Please enter description maximum 250 characters only');
		con.desc.focus();
		return false;
	}
}