var revert = new Array();
var inames = new Array('single-profile', 'twoperson-compatability', 'family-dynamic', 'social-dynamic', 'work-compatibility', 'offer', 'proceed');

// Preload
if (document.images) {
  var flipped = new Array();
  for(i=0; i< inames.length; i++) {
	if(i < 5) {
		flipped[i] = new Image();
		flipped[i].src = "images/buttons/" + inames[i] + "_over.gif";
	}
	else if(i==5){
		flipped[i] = new Image();
		flipped[i].src = "images/" + inames[i] + "_alt.png";
	}
	else {
		flipped[i] = new Image();
		flipped[i].src = "images/buttons/" + inames[i] + "_alt.gif";
	}
  }
}

function over(num) {
  if(document.images) {
    revert[num] = document.images[inames[num]].src;
    document.images[inames[num]].src = flipped[num].src;
  }
}
function out(num) {
  if(document.images) document.images[inames[num]].src = revert[num];
}