function hideLogin() {
        document.getElementById('reginfo').style.display="none";
        document.getElementById('reginfo1').style.display="none";
        document.getElementById('reginfo2').style.display="none";
        //document.getElementById('reginfo3').style.display="none";
        obligs.splice(0,3);
        obligsDesc.splice(0,3);
        
    }
    function showLogin() {
        document.getElementById('reginfo').style.display="";
        document.getElementById('reginfo1').style.display="";
        document.getElementById('reginfo2').style.display="";
        //document.getElementById('reginfo3').style.display="";
        obligs.unshift("loginname1","passwd1", "password2");
        obligsDesc.unshift("Brukernavn","Passord","Genta Passord");    
    }
    
    function showReg() {
        document.getElementById('regLoggin').style.display="";
        document.getElementById('regY').style.display="none";         
    }
    
    function hideReg() {
        document.getElementById('regY').style.display="";  
        document.getElementById('regLoggin').style.display="none";       
    }
        
    function showCode(){

		var d = $('groupCode');
		//alert($('cgroup').checked);
		//d.hide();
		if($('cgroup').checked){
			d.style.display="";
		}else{
			d.style.display="none";
		}
		//d.addClassName('active');

    }
    
    function hideCode(){

		var d = $('groupCode');
		d.hide();		
		//d.addClassName('active');

    }
    
    var obligs=new Array();
    var obligsDesc=new Array();
    obligs.push('loginname1','passwd1','password2');
    obligsDesc.push('Brukernavn','Passord','Gjenta');

    
    function checkExt(inp, name){
        
        updatedate(name);        
        if(inp == 1){
            showCred();
        }else{
            hideCred();
        }
    }
    
    function hideCred() {
        document.getElementById('reginfo').style.display="none";        
    }
    function showCred() {
        document.getElementById('reginfo').style.display="";        
    }