/*
by milch&zucker AG/ sag
element anzeigen/ausblenden
*/

function switchDisplay(id){
doc=document.getElementById(id);
 if(doc.style.display == 'none')
  doc.style.display = 'block';
 else
  doc.style.display = 'none';
}

function switchDisplayFaq(id){
doc=document.getElementById(id);
 if(doc.style.display == 'none')
  doc.style.display = 'block';
 else
  doc.style.display = 'none';
}

function showSites(){
doc=document.getElementById('other_career_sites');
btc=document.getElementById('career_sites');
 if(doc.style.display == 'none'){
  doc.style.display = 'block';
  btc.className = 'career_sites_open';
}else{
  doc.style.display = 'none';
  btc.className = 'career_sites';
 }
}

function popup(ziel,breite,hoehe,scroller) {
	if (!scroller) var scroller='yes';
	window.open(''+ziel+'','','width='+breite+',height='+hoehe+',scrollbars='+scroller+',resizable=yes');
	}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function check_email(formname,field){
	var content="document."+formname+"."+field+".value";
	var content2=eval(content);

	var nReg=new RegExp("^[a-zA-Z0-9\-\_]+(\.[a-zA-Z0-9\-\_]+)*\@[a-zA-Z0-9]+[a-zA-Z0-9\-]*[a-zA-Z0-9]+(\.[a-zA-Z0-9]+[a-zA-Z0-9\-]*[a-zA-Z0-9]+)*\.[a-zA-Z]{2,3}$");
	result = nReg.test(content2);
	if(result!=false || content2=="")
	{
		return true;
	}
	else
	{
		return false;
	}
}