// form vlidation
  
  
  function checkform() 
  {
    var name = document.getElementById("name").value;
		var company = document.getElementById("companyname").value;
    var position = document.getElementById("position").value;
    var email = document.getElementById("email").value;
    var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
  	 
    if (name == "") {
      hideAllErrors();
      document.getElementById("nameError").style.display = "inline";
      document.getElementById("name").select();
      document.getElementById("name").focus();
     return false;
  	 
		} else if (company == "") {
      hideAllErrors();
      document.getElementById("companyError").style.display = "inline";
      document.getElementById("companyname").select();
      document.getElementById("companyname").focus();
     return false;
		 
    } else if (position == "") {
      hideAllErrors();
      document.getElementById("positionError").style.display = "inline";
      document.getElementById("position").select();
      document.getElementById("position").focus();
     return false;
  	 
    
  	} else if(reg.test(email) == false) {
      hideAllErrors();
      document.getElementById("emailError").style.display = "inline";
      document.getElementById("email").select();
      document.getElementById("email").focus();
     return false;
    } 
    return true;
  }
   
    function hideAllErrors() {
      document.getElementById("nameError").style.display = "none"
			document.getElementById("companyError").style.display = "none"
  		document.getElementById("positionError").style.display = "none"
      document.getElementById("emailError").style.display = "none"
    }