if(document.layers)document.write('<style> .intext{font-family:verdana; font-size:9px;} .intext2{color:#ffffff;background-color:#88765B; font-family : Arial, Helvetica, sans-serif;font-size:10px;}</style>');else document.write('<style>.intext{background-color:#FFEACD; font-family:verdana; font-size:10px; border: #878788 solid 1px;} .intext2{color:#ffffff;background-color:#88765B; font-family : Arial, Helvetica, sans-serif;font-size:10px; border-top-color:#78797A;border-left-color:#78797A; border-width:1pt; border-bottom-color: #CACACA;border-right-color: #CACACA;} .imma{border-color:#4A4C4B; border-width: 1;}</style>');

function controlla(s){

var a = false; 
var res = false; 
if(typeof(RegExp) == 'function') 
{ 
var b = new RegExp('abc'); 
if(b.test('abc') == true){a = true;} 
} 
 
if(a == true) 
{ 
reg = new RegExp('^([a-zA-Z0-9\\-\\.\\_]+)'+ 
'(\\@)([a-zA-Z0-9\\-\\.]{2,255})'+ 
'(\\.)([a-zA-Z]{2,4})$'); 
res = (reg.test(s)); 
} 
else 
{ 
res = (s.search('@') >= 1 && 
s.lastIndexOf('.') > s.search('@') && 
s.lastIndexOf('.') >= s.length-5);
} 

if(res==false){
alert("Geben Sie eine gültige Anschrift und Email ein.");
return false;}
else{return true;
}}