normal_image = new Image();
normal_image.src = "images/navigation/bt_home1.gif";

mouseover_image = new Image();
mouseover_image.src = "images/navigation/bt_home2.gif";
		
normal_image1 = new Image();
normal_image1.src = "images/navigation/bt_about1.gif";

mouseover_image1 = new Image();
mouseover_image1.src = "images/navigation/bt_about2.gif";		
		
normal_image2 = new Image();
normal_image2.src = "images/navigation/bt_free_sample1.gif";

mouseover_image2 = new Image();
mouseover_image2.src = "images/navigation/bt_free_sample2.gif";	
		
normal_image3 = new Image();
normal_image3.src = "images/navigation/bt_win1.gif";

mouseover_image3 = new Image();
mouseover_image3.src = "images/navigation/bt_win2.gif";

normal_image4 = new Image();
normal_image4.src = "images/navigation/bt_team1.gif";

mouseover_image4 = new Image();
mouseover_image4.src = "images/navigation/bt_team2.gif";

normal_image5 = new Image();
normal_image5.src = "images/navigation/bt_confidence1.gif";

mouseover_image5 = new Image();
mouseover_image5.src = "images/navigation/bt_confidence2.gif";

normal_image6 = new Image();
normal_image6.src = "images/montly_prize_page/weekly_prizes1.jpg";

mouseover_image6 = new Image();
mouseover_image6.src = "images/montly_prize_page/weekly_prizes2.jpg";

normal_image7 = new Image();
normal_image7.src = "images/win_prize_main_page/bt_teamplayercontest1.gif";

mouseover_image7 = new Image();
mouseover_image7.src = "images/win_prize_main_page/bt_teamplayercontest2.gif";

normal_image8 = new Image();
normal_image8.src = "images/montly_prize_page/bt_enternow1.gif";

mouseover_image8 = new Image();
mouseover_image8.src = "images/montly_prize_page/bt_enternow2.gif";

normal_image9 = new Image();
normal_image9.src = "images/montly_prize_page/bt_getthedetails1.gif";

mouseover_image9 = new Image();
mouseover_image9.src = "images/montly_prize_page/bt_getthedetails2.gif";

normal_image10 = new Image();
normal_image10.src = "images/essay_main/bt_nominateafriend1.gif";

mouseover_image10 = new Image();
mouseover_image10.src = "images/essay_main/bt_nominateafriend2.gif";

normal_image11 = new Image();
normal_image11.src = "images/essay_main/bt_nominateyourself1.gif";

mouseover_image11 = new Image();
mouseover_image11.src = "images/essay_main/bt_nominateyourself2.gif";

normal_image12 = new Image();
normal_image12.src = "images/essay_main/bt_getthedetails1.gif";

mouseover_image12 = new Image();
mouseover_image12.src = "images/essay_main/bt_getthedetails2.gif";

normal_image13 = new Image();
normal_image13.src = "images/montly_prize_page/featured_nominees.jpg";

mouseover_image13 = new Image();
mouseover_image13.src = "images/montly_prize_page/featured_nominees2.jpg";

normal_image14 = new Image();
normal_image14.src = "images/confidence_page/bt_confidencetips1.gif";

mouseover_image14 = new Image();
mouseover_image14.src = "images/confidence_page/bt_confidencetips2.gif";

normal_image15 = new Image();
normal_image15.src = "images/confidence_page/bt_qnas1.gif";

mouseover_image15 = new Image();
mouseover_image15.src = "images/confidence_page/bt_qnas2.gif";

normal_image16 = new Image();
normal_image16.src = "images/confidence_page/bt_aboutdrsusser1.gif";

mouseover_image16 = new Image();
mouseover_image16.src = "images/confidence_page/bt_aboutdrsusser2.gif";


normal_grand_prize_winner = new Image();
normal_grand_prize_winner.src = "images/montly_prize_page/grand_prize_winner.jpg";

mouseover_grand_prize_winner = new Image();
mouseover_grand_prize_winner.src = "images/montly_prize_page/grand_prize_winner2.jpg";
																
function swap(){
	if (document.images){
		for (var x=0; x<swap.arguments.length; x+=2) {
			document[swap.arguments[x]].src = eval(swap.arguments[x+1] + ".src");
		}
	}
}