function textSwap(whatText) {
	document.getElementById('block').innerHTML = whatText;
}

function createPopup(whichPopup) {
	largeImage.setBody(document.getElementById(whichPopup).innerHTML);
	largeImage.show();
}

init = function() {
	// Instantiate a Panel from script
	largeImage = new YAHOO.widget.Panel("panel", { width:"520px", visible:false, draggable:true, modal:true, close:true, fixedcenter: false, effect:{effect:YAHOO.widget.ContainerEffect.FADE,duration: 0.14} } );
	largeImage.setHeader("");
	largeImage.setBody("Please wait while the content loads.");
	largeImage.setFooter("<p style='text-align:right;'>Examples of design work by Kevin Hankey - Four by Three 2008</p>");
	largeImage.render("container");
}
YAHOO.util.Event.addListener(window, "load", init);

function checkemail(str) {
 var filter =/^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,7}|\d+)$/i;
 return (filter.test(str));
}

function validateFields() {
 if (document.form1.name.value=='' || document.form1.name.value=='name') {
  alert('Please enter your name.');
  if (document.form1.name.value=='name'){document.form1.name.value=''};
  document.form1.name.focus();
  return;
 }
 if (document.form1.email.value=='' || document.form1.email.value=='email') {
  alert('Please enter your email address.');
  if (document.form1.email.value=='email'){document.form1.email.value=''};
  document.form1.email.focus();
  return;
 }
 if (!checkemail(document.form1.email.value)) { 
  alert('Please enter a valid email address.');
  document.form1.email.focus();
  return;
 }  
 if (document.form1.message.value=='') {
  alert('Please enter your message.');
  document.form1.message.focus();
  return;
 }
 document.form1.submit();
}