function checkForm() {
   name = document.getElementById("txt_name").value;
    
	 telephone = document.getElementById("txt_telephone").value;
	
	  
	   address = document.getElementById("txt_addressp").value;
	   
	  


	if(name == "") {
hideAllErrors();
document.getElementById("nameError").style.display = "inline";
document.getElementById("txt_name").select();
document.getElementById("txt_name").focus();
  return false;
  }
 else if(telephone == "") {
hideAllErrors();
document.getElementById("telephoneError").style.display = "inline";
document.getElementById("txt_telephone").select();
document.getElementById("txt_telephone").focus();
  return false;
  }
  
   else if(address == "") {
hideAllErrors();
document.getElementById("addressError").style.display = "inline";
document.getElementById("txt_addressp").select();
document.getElementById("txt_addressp").focus();
  return false;
  }
   
  else
   return true;
   }
   function hideAllErrors() {


document.getElementById("nameError").style.display = "none"
document.getElementById("addressError").style.display = "none"
document.getElementById("telephoneError").style.display = "none"



  }