function exampleCards(t) {

	var resource_cards = Array('resource_card.gif','resource_card1.gif','resource_card2.gif','resource_card3.gif');
	var opp_cards = Array('opportunity_card.gif','opportunity_card1.gif','opportunity_card2.gif','opportunity_card3.gif');
	var goal_cards = Array('goal_card.gif','goal_card1.gif','goal_card2.gif');

	var card_index = 0;

	if (t == 'resource_card') {
		for (var x=0; x<resource_cards.length; x++) {
			if ((document.getElementById(t).src.indexOf(resource_cards[x]) > 0)&&(x < (resource_cards.length-1))) {
				card_index = x+1;
			}
		}

		document.getElementById(t).src = 'images/cards/' + resource_cards[card_index];
	}
	else if (t == 'opportunity_card') {
		for (var x=0; x<opp_cards.length; x++) {
			if ((document.getElementById(t).src.indexOf(opp_cards[x]) > 0)&&(x < (opp_cards.length-1))) {
				card_index = x+1;
			}
		}

		document.getElementById(t).src = 'images/cards/' + opp_cards[card_index];
	}
	else if (t == 'goal_card') {
		for (var x=0; x<goal_cards.length; x++) {
			if ((document.getElementById(t).src.indexOf(goal_cards[x]) > 0)&&(x < (goal_cards.length-1))) {
				card_index = x+1;
			}
		}

		document.getElementById(t).src = 'images/cards/' + goal_cards[card_index];
	}




}