// JavaScript Document
function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' tiene que contener una dirección e-mail.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' es un campo requerido.\n'; }
  } if (errors) alert('Un error ha ocurrido:\n'+errors);
  document.MM_returnValue = (errors == '');
}

function doajax(){
	var xmlhttp=false;
	/* for IE...*/
	try{
		xmlhttp = new ActiveXObject('Msxml2.XMLHTTP');
	}catch(e){
		try{
			xmlhttp = new ActiveXObject('Microsoft.XMLHTTP');
		}catch(E){
			xmlhttp = false;
		}
	}
	/* for Mozilla...*/
	if(!xmlhttp && typeof XMLHttpRequest!='undefined'){
		xmlhttp = new XMLHttpRequest();
	}
	return xmlhttp;
}





function hideSubSelect(obj){
	var controls=new Array();
	controls[0]=document.getElementById("div_sub0");
	controls[1]=document.getElementById("div_sub1");
	controls[2]=document.getElementById("div_sub2");
	controls[3]=document.getElementById("div_sub3");
	hide=false;
	for (var i=0; i<controls.length; i++){
			if (controls[i]){
				if (hide){
					controls[i].style.display="none";
				}else{
					controls[i].style.display="block";
				}
				if (obj.id==controls[i].id){
					hide=true;
				}
			}
		}
		//alert(controls[i]+" "+i);*/
}
	
function returnDestiny(obj){
	//return controls.length;
	var controls=new Array();
	controls[0]=document.getElementById("div_sub0");
	controls[1]=document.getElementById("div_sub1");
	controls[2]=document.getElementById("div_sub2");
	controls[3]=document.getElementById("div_sub3");
	for (var i=0; i<controls.length; i++){
		if (obj.id==controls[i].id){
			if (i<3){
				return controls[i+1];
			}else{
				return false;
			}
		}
		//alert(controls[i]+" "+i);
	}
	
}

function lastkey(){
	return lstkey;
}

function findlastkey(obj){
	if (chklink(obj)!=-1){
		lstkey=obj.value;
	}else{
		lstkey=0;
	}
}

function chklink(v){
	var k=v.options[v.selectedIndex].text
	if(k.substr(k.length-1, k.length-1)==">"){
		return -1;
	}else{
		return v.value;
	}
}
function loadSubSelect2(obj, oobj){
	if (oobj.options[oobj.selectedIndex].text.toUpperCase()!="ALLE"){	
		var request=doajax();
		//alert(obj.parentNode);
		if(request){
			request.onreadystatechange=function(){
				if(request.readyState==4){
														
					var destiny=returnDestiny(obj.parentNode);
					//alert(destiny);								
					hideSubSelect(returnDestiny(obj.parentNode));
					//alert(request.responseText);
					if (destiny){
						if (request.responseText.length>11){
							destiny.innerHTML=request.responseText;
						}else{
							destiny.style.display="none";
						}
					}
								
				}
			}
			//alert(oobj.value);
			request.open("GET", "../../jsincrono.php?subs2="+oobj.value, true);
			request.send(null);
		}else{
			alert("Das httprequest-Objekt konnte nicht erstellt werden.");
		}
	}
}	

function loadSubSelect(obj, oobj){
	
	kompetenz=chklink(oobj);
	//alert(kompetenz);
	var request=doajax();
	//alert(obj.parentNode);
	if(request){
		request.onreadystatechange=function(){
			if(request.readyState==4){
													
				var destiny=returnDestiny(obj.parentNode);
				//alert(obj.parentNode);								
				hideSubSelect(returnDestiny(obj.parentNode));
				//alert(request.responseText);
				if (destiny){
					if (request.responseText.length>11){
						destiny.innerHTML=request.responseText;
					}else{
						destiny.style.display="none";
					}
				}
							
			}
		}
		request.open("GET", "../../jsincrono.php?subs="+oobj.value, true);
		request.send(null);
	}else{
		alert("Das httprequest-Objekt konnte nicht erstellt werden.");
	}
	
}