var arrayServices = new Array();
arrayServices[0]='';
var start = true;

function renderServiceByPublicationType(){
	var publicationTypeId = document.getElementById("publication_type").selectedIndex;
	if(start){
		start = false;
		storeServices();
	}
	var myselect=document.getElementById("services");
	//1: Person
	//2: Company
	if(publicationTypeId == 1){
		disabledOptions(myselect);
		disabledEnabledHorseQualityIndex(true);
	}else{
		restoreService(myselect);
		disabledEnabledHorseQualityIndex(false);
	}
}
function disabledOptions(selectbox){
	var i;
	if(selectbox.options.length == 5){
  	for(i=selectbox.options.length-1;i>0;i--){
  		//selectbox.remove(i);
  		if(i==4 || i==3){
  		  //selectbox.options[i].disabled = true;
  		  selectbox.remove(i);
  		}
  	}
	}
}

function disabledEnabledHorseQualityIndex(status){
  document.getElementById("horse_quality_index").disabled = status; 
}

function restoreService(myselect){
	/*for(i=myselect.options.length-1;i>0;i--){
		myselect.options[i].disabled = false;
	}*/
	if(myselect.length != 5){
  	for(i=1;i<arrayServices.length;i++){
  	   myselect.options[i] = new Option(arrayServices[i],i);
  	}
	}
}

function storeServices(){
	myselects=document.getElementById("services");
	for(i=1;i<myselects.options.length;i++){
	   arrayServices[i] = myselects.options[i].text;
	}
}