function imgChange(img_nm, img_id) {
    document.getElementById(img_id).src = './images/'+img_nm;
}
function checkcont() {
  if (document.getElementById('firstname').value == "" ) {
          alert('Please insert your \"First Name\"');
          document.getElementById('firstname').focus();
          return false;
  }
  if (document.getElementById('lastname').value == "") {
	 alert('Please insert your \"Last Name\"')
	 document.getElementById('lastname').focus();
	 return false;
  }
  if (document.getElementById('address').value == "") {
          alert('Please insert your \"Address\"');
          document.getElementById('address').focus();
          return false;
  }
  if (document.getElementById('city').value == "" ) {
          alert('Please insert your \"City\"');
          document.getElementById('city').focus();
          return false;
  }
  if (document.getElementById('state').value == "" ) {
          alert('Please select your \"State\"');
          document.getElementById('state').focus();
          return false;
  }
  if (document.getElementById('email').value == "") {
          alert('Please insert your \"E-mail\"');
          document.getElementById('email').focus();
          return false;
  }
}

function checksig() {
	if (document.getElementById('firstname').value == "") {
		alert('Please insert your \"First Name\"');
		document.getElementById('firstname').focus();
		return false;
	}
	if (document.getElementById('lastname').value == "") {
		alert('Please insert you \"Last Name\"');
		document.getElementById('lastname').focus();
		return false;
	}
	if (document.getElementById('address').value == "") {
		alert('Please insert your \"Address\"');
		document.getElementById('address').focus();
		return false;
	}
	if (document.getElementById('city').value == "") {
		alert('Please insert your \"City\"');
		document.getElementById('city').focus();
		return false;
	}
	if (document.getElementById('state').value == "") {
		alert('Please select a \"State\"');
		document.getElementById('state').focus();
		return false;
	}
        if (document.getElementById('zipcode').value == "") {
                alert('Please insert you ZipCode.');
                document.getElementById('zipcode').focus();
                return false;
        }
	if (document.getElementById('email').value == "") {
		alert('Please insert your \"E-mail\"');
		document.getElementById('email').focus();
		return false;
	}
	if (document.getElementById('f_drink').value == "") {
		alert('Please insert your \"Favorite Drink\"');
		document.getElementById('f_drink').focus();
		return false;
	}
	if (document.getElementById('description').value == "") {
		alert('Please \"Describe yourself\"');
		document.getElementById('description').focus();
		return false;
	} 
	if (document.getElementById('photo').value == "") {
		alert('Please insert a picture');
		document.getElementById('photo').focus();
		return false;
	}
}

function popup(url,x,y,nome){
		window.open(url,nome,'directories=0,height='+y+',width='+x+',location=0,top='+((screen.availHeight-y)/2)+',left='+((screen.availWidth-x)/2)+',resizable=0,scrollbars=0,toolbar=0,status=0');
}