//Written by Bogdan Blaszczak/BlaTek

function trim(x){return x.replace(/\s+$|^\s+/g,'')}
function isPhone(x){return /^[0-9+\-() ]{8,}$/i.test(x)}
function isEmail(x){return /^[\w\.-]{2,}@[\w\.-]+\.[a-z]{2,5}$/i.test(x)}

function chkForm(t,e){
 e=t.fName
 e.value=trim(e.value)
 if(e.value==''){e.focus();alert('Write Your First Name!');return!1}
 e=t.lName
 e.value=trim(e.value)
 if(e.value==''){e.focus();alert('Write Your Last Name!');return!1}

 e=t.Email
 e.value=trim(e.value)
 if(e.value>''&&!isEmail(e.value)){e.focus();alert('E-mail is not correct!');return!1}

 e=t.Telephone
 e.value=trim(e.value)
 if(e.value>''&&!isPhone(e.value)){e.focus();alert('Telephone is not correct!');return!1}
 
 if(!t.Email.value&&!t.Telephone.value)
  {t.Email.focus();alert('You must specify at least one contact form: Email or Telephone!');return!1}
 
 e=t.Inquiry
 e.value=trim(e.value)
 if(e.value==''){e.focus();alert('Complete the inquiry text area!');return!1}
 return!0
}