function displayAdditionalInput(id){
	//alert(id);
	//alert(document.getElementById("hidden_div_title"));
	if(id==1){
		document.getElementById("hidden_div").className = "show_div";
		document.getElementById("hidden_div_title").className = "show_div";
		document.getElementById("hidden_div_title").innerHTML = "&nbsp;<b>Enter tradeshow name:</b>";
		
		document.getElementById("howdidfind_value").className = "input";
		//document.getElementById("howdidfind_value").value = "Enter Tradeshow Name Here";
		document.getElementById("howdidfind_value").value = "";
	}
	else if(id==2){
		document.getElementById("hidden_div").className = "show_div";
		document.getElementById("hidden_div_title").className = "show_div";
    document.getElementById("hidden_div_title").innerHTML = "&nbsp;<b>Enter reps first name:</b>";
    
		document.getElementById("howdidfind_value").className = "input";
		//document.getElementById("howdidfind_value").value = "Enter Reps First Name Here";
		document.getElementById("howdidfind_value").value = "";
	}
	else if(id==3){
    document.getElementById("hidden_div").className = "show_div";
    document.getElementById("hidden_div_title").className = "show_div";
    document.getElementById("hidden_div_title").innerHTML = "&nbsp;<b>Website name:</b>";
    
    document.getElementById("howdidfind_value").className = "input";
    document.getElementById("howdidfind_value").value = "";
  }
  else if(id==4){
    document.getElementById("hidden_div").className = "show_div";
    document.getElementById("hidden_div_title").className = "show_div";
    document.getElementById("hidden_div_title").innerHTML = "&nbsp;<b>Newsletter/magazine name:</b>";
    
    document.getElementById("howdidfind_value").className = "input";
    document.getElementById("howdidfind_value").value = "";
  }
  else if(id==5){
    document.getElementById("hidden_div").className = "show_div";
    document.getElementById("hidden_div_title").className = "show_div";
    document.getElementById("hidden_div_title").innerHTML = "&nbsp;<b>Industry forum/blog name:</b>";
    
    document.getElementById("howdidfind_value").className = "input";
    document.getElementById("howdidfind_value").value = "";
  }
	else if(id==8){
		document.getElementById("hidden_div").className = "show_div";
		document.getElementById("hidden_div_title").className = "show_div";
    document.getElementById("hidden_div_title").innerHTML = "&nbsp;<b>Please specify:</b>";
    
		document.getElementById("howdidfind_value").className = "input";
		//document.getElementById("howdidfind_value").value = "Please Specify";
		document.getElementById("howdidfind_value").value = "";
	}
	else{
		document.getElementById("hidden_div").className = "hidden_div";
		document.getElementById("hidden_div_title").className = "hidden_div";
    
		document.getElementById("howdidfind_value").className = "hidden_input";
		document.getElementById("howdidfind_value").value = "";
	}
}

function emptyField(obj){
	obj.value="";
}

function checkEmptyField(){
	var theFieldClassName = document.getElementById("howdidfind_value").className;
	var theFieldValue = document.getElementById("howdidfind_value").value;
	var howDidFindValue = document.getElementById("howdidfind").value;
	
	//trim the value
	howDidFindValue = howDidFindValue.replace(/^\s+|\s+$/g, '') ;
	theFieldValue = theFieldValue.replace(/^\s+|\s+$/g, '') ;
	
	if(howDidFindValue == ""){
    alert("Please select \"How did you find us\"");
    return false;
  }

	if( theFieldClassName == "input"){
		if(theFieldValue == "" || theFieldValue =="/n" || theFieldValue == "/t"){
			alert ("Please fill further details for \"How did you find us\"");
			return false;
		}
	}
	return true;
}