function clearBox(box){if(box.value==box.defaultValue){box.value="";}
else{box.select();}}
function trim(str){return String(str).replace(/^\s+|\s+$/g,"");}
function empty(str){if(str===undefined){return true;}
else if(str==null){return true;}
else{return String(str).search(/^\s*$/)!=-1;}}
function isEmailAddress(s){if(empty(s)){return false;}
else{return String(s).search(/^\s*[\w\-\+_]+(\.[\w\-\+_]+)*\@[\w\-\+_]+\.[\w\-\+_]+(\.[\w\-\+_]+)*\s*$/i)!=-1;}}
function isURL(s){if(empty(s)){return false;}
else{return String(s).search(/^\s*(https?|ftp):\/\/([-\w\.]+)+(:\d+)?(\/([\w\/_\.]*(\?\S+)?)?)?\s*$/i)!=-1;}}
function checkCommentForm(form){var ret=true;var ne=$('name-error');var ee=$('email-error');var ue=$('url-error');var me=$('message-error');ne.setStyle('display','none');ee.setStyle('display','none');ue.setStyle('display','none');me.setStyle('display','none');if(form.message.value==form.message.defaultValue||empty(form.message.value)){me.setStyle('display','inline');form.message.focus();ret=false;}
if(!empty(form.url.value)){if(!isURL(form.url.value)){ue.setStyle('display','inline');form.url.focus();form.url.select();ret=false;}}
if(!empty(form.email.value)){if(!isEmailAddress(form.email.value)){ee.setStyle('display','inline');form.email.focus();form.email.select();ret=false;}}
if(empty(form.name.value)){ne.setStyle('display','inline');form.name.focus();form.name.select();ret=false;}
if(ret==true&&form.vcookie2.checked){Cookie.write('visitorinfo',form.name.value+'%'+ form.url.value+'%'+ form.email.value,{path:cookie_path,duration:9999});}
return ret;}