var RequiredField = new Array();
function RF(name,alertphrase){this.name=name;this.text=alertphrase;}
function CheckForm(f) {for(i=0;i<RequiredField.length;i++){if(f[RequiredField[i].name]){if(f[RequiredField[i].name].value==''){alert(RequiredField[i].text);return false;}}}return true;}
function CheckUrl(url){var re= /^[\w\.-]*[\w\.]+[a-z]{2,3}/i;if(!re.test(url.value)){alert('Адрес сайта указан не верно');return false;}return true;}
var rep = document.getElementById('rep');
var submit = document.getElementById('submit');
function checkCaptcha(){var num=rep.value.length;if(num==6){submit.removeAttribute('disabled');}else{submit.setAttribute('disabled','disabled')}}