function radioRequired(a,b){b.style.visibility='visible';var c=false;for(var j=0;j<a.length;j++){if(a[j].checked){c=true;break}}if(c){b.src='/site/img/form/aan.gif'}else{b.src='/site/img/form/uit.gif'}return c}function normalRequired(a,b){var c=false;b.style.visibility='visible';if(a.value){b.src='/site/img/form/aan.gif';c=true}else{b.src='/site/img/form/uit.gif';c=false}return c}function emailRequired(a,b){b.style.visibility='visible';var c=/^[a-zA-Z0-9._-]+@([a-zA-Z0-9.-]+\.)+[a-zA-Z0-9.-]{2,5}$/;if(c.test(a.value)){b.src='/site/img/form/aan.gif';returnValue=true}else{b.src='/site/img/form/uit.gif';returnValue=false}return returnValue}