// JavaScript for settllink.nl

//open email-window
function openEmail() { 
  window.open('email.html','EmailWindow','width=583,height=510,left=150,top=75,screenX=150,screenY=75'); 
}

//MM-functies: form-validation
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+' must contain an e-mail address.\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+' is required.\n'; }
  } if (errors) alert('The following error(s) occurred:\n'+errors);
  document.MM_returnValue = (errors == '');
  
  //hidden variable een bepaalde waarde geven
  document.InfoForm.SUBJECT.value="information request via contact-page on site" 
}

//tab-navigation (roep init aan op pagina met tabs)
		function init()
		{
			if(document.getElementById && document.createTextNode)
			{   hidem();
			
				var tbs=document.getElementById('tabs');
				var as=tbs.getElementsByTagName('a');
				for (var i=0;i<as.length;i++)
				{
					as[i].onclick=function(){show(this);return false}
					as[i].onkeypress=function(){show(this);return false}
					if(as[i].className=='initCurrent')show(as[i]);
				}		
				
			}
		}  
		function show(l)
		{
			hidem();
			tabCurrent(l);
			var id=l.href.match(/#(\w.+)/)[1];
			document.getElementById(id).style.display='block';
		}
		function hidem()
		{
			var tbs=document.getElementById('tabsContent');
			var divs=tbs.getElementsByTagName('div');
			for (var i=0;i<divs.length;i++)
			{
				divs[i].style.display='none';
			}
		}
		function tabCurrent(t)
		{
			tabsNeutraal();
			t.className='current';
					
		}
		function tabsNeutraal()
		{
			var tbs=document.getElementById('tabs');
				var as=tbs.getElementsByTagName('a');
				for (var i=0;i<as.length;i++)
					as[i].className=""; 
					
		}