function getRadioValue(radioName){var inputs=document.getElementsByTagName('input');var inputsLength=inputs.length;for(var i=0;i<inputsLength;i++){if(inputs[i].type=='radio'&&inputs[i].name==radioName&&inputs[i].checked)return inputs[i].value;}
return null;}
function validEmail(str){var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
return filter.test(str);}