function checkForm_email() {
 		 var fehler_gefunden=0;
		 
         if (document.subscribeform.email.value=="") {
         document.subscribeform.email.style.backgroundColor="yellow";
		 document.getElementById('erremail').style.display="inline";
         document.subscribeform.email.focus();
		 fehler_gefunden=1;
		 }
		 else {
         document.subscribeform.email.style.backgroundColor="white";
         }

         if(document.subscribeform.email.value.indexOf('@')==-1 || document.subscribeform.email.value.indexOf('.')==-1)
         {
         document.subscribeform.email.style.backgroundColor="yellow";
		 document.getElementById('erremail').style.display="inline";
         document.subscribeform.email.focus();
		 fehler_gefunden=1;
		 }
		 else {
         document.subscribeform.email.style.backgroundColor="white";
         }
		 
		 if (fehler_gefunden!=0) {
		 	document.getElementById('erremail').style.display="inline";
			return false;
		 }
		 else
   		 {
   		 	document.getElementById('erremail').style.display="none";
   		 }
}