var fieldsValid=true;function spf_checkForm(){fieldsValid=true;if(!(document.content_form.email_sender.value.search(/[@.]/)>=0)||!(document.content_form.email_sender.value.search(/.+@..+\...+/)>=0)||!(document.content_form.email_sender.value.length>=8)){markingField("email_sender")}else{clearField("email_sender")}if(!(document.content_form.email_receiver.value.search(/[@.]/)>=0)||!(document.content_form.email_receiver.value.search(/.+@..+\...+/)>=0)||!(document.content_form.email_receiver.value.length>=8)){markingField("email_receiver")}else{clearField("email_receiver")}return fieldsValid};