// TAMHO Javascript
var numDudes = 7;
var names = Array(numDudes);
names[0] = "about";
names[1] = "calendar";
names[2] = "contact";
names[3] = "service";
names[4] = "links";
names[5] = "professional";
names[6] = "promise";

function preload()
{
  images = new Array(numDudes);
  for( var i = 0; i < numDudes; i++) {
    images[i] = new Image();
    images[i].src = "images/nav/nav_"+names[i]+"_a.jpg";
  }
}

function swap(num, onOff)
{  
  imgName = names[num];
  if(onOff == "on"){
    fileName = "images/nav/nav_"+imgName+"_a.jpg";
  }
  else{
    fileName = "images/nav/nav_"+imgName+".jpg";
  }
  document[imgName].src = fileName;
}

function clearField(obj){
  if((obj.value == 'Search Keywords') || (obj.value == 'Username') || (obj.value == 'Password')){
    obj.value = "";
  }
}