function init() {
	// initialize our search fields and set our new 'changed' property to false
	var directory=document.getElementById('directory');
	var wesleyan=document.getElementById('wesleyan');
	var google=document.getElementById('google');
	directory.changed=wesleyan.changed=google.changed=false;

	// when a field is focused, clear the value and change color to black if its field hasn't changed
	directory.onfocus=wesleyan.onfocus=google.onfocus=function() { if (!this.changed) { this.style.color='#000'; this.value=''; } }
	// when a field is blurred, revert the value and change color back to gray if it hasn't changed or value is empty
	directory.onblur=wesleyan.onblur=google.onblur=function() { if (!this.changed||this.value=='') { this.style.color='#6b6b6b'; this.value=this.id; this.changed=false; } }
	// when a field is changed, set our changed property to true
	directory.onkeyup=wesleyan.onkeyup=google.onkeyup=function() { this.changed=true; }
}