function checkEmail_cb(index)
{
	document.getElementById("riquadro_sopra1").innerHTML=index;
	document.getElementById("send").disabled=false;
}

function checkEmail()
{
 var email;
 var reg = /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;
 email=	document.getElementById("email").value;
    
 
   if(reg.test(email))	{
	    x_checkEmail(email,checkEmail_cb);
		document.getElementById("riquadro_sopra").innerHTML="";
		document.getElementById("send").disabled=false;
    }else{
		document.getElementById("riquadro_sopra").innerHTML="<span style='color:#ff0000; font-weight: bold;'>Keine g&uuml;ltige E-Mail Adresse</font>";

		document.getElementById("send").disabled=true;	
	}

}

function checkformEmail()
{
 var email;
 var reg = /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;
 email=	document.getElementById("formemail").value;
    
 
   if(reg.test(email))	{
		document.getElementById("emailform").innerHTML="E-mail:";
		document.getElementById("welcome").disabled=false;
    }else{
		document.getElementById("emailform").innerHTML="<span style='color:#ff0000; font-weight: bold;'>Keine g&uuml;ltige E-Mail Adresse</font>";

		document.getElementById("welcome").disabled=true;	
	}

}

function fullname()
{
 var email;
 var reg =/^[a-zA-Z]{1}([a-zA-Z]|[._]){3,19}$/;
 email=	document.getElementById("fullname1").value;
    
 
   if(reg.test(email))	{
		document.getElementById("fullnamelab").innerHTML="Fullname:";
		document.getElementById("welcome").disabled=false;
    }else{
		document.getElementById("fullnamelab").innerHTML="<span style='color:#ff0000; font-weight: bold;'><span style='color:#f00;'>Bitte g&uuml;ltigen Namen angeben</span></font>";

		document.getElementById("welcome").disabled=true;	
	}

}




function checkfrom()
{
	var email;
	var name1;
	email=document.getElementById("formemail").value;
	name1=document.getElementById("fullname1").value;
	if(email==""||name1=="")
	{
	   alert("name or email is empty");
	   return false;
	}

	else
	{
		return true;
	}
	
}