if (document.images) {
	mainImage1 = new Image(499,475);
	mainImage1.src = "images/index_doctor.png";
	mainImage2 = new Image(499,475);
	mainImage2.src = "images/index_doctor2.png";
	mainImage3 = new Image(499,475);
	mainImage3.src = "images/index_doctor3.png";
	mainImage4 = new Image(499,475);
	mainImage4.src = "images/index_doctor4.png";
	line1_1 = new Image(589,39);
	line1_1.src = "images/line1_1.png";
	line1_2 = new Image(589,39);
	line1_2.src = "images/line1_2.png";
	line1_3 = new Image(589,39);
	line1_3.src = "images/line1_3.png";
	line1_4 = new Image(589,39);
	line1_4.src = "images/line1_4.png";
	line2_1 = new Image(500,27);
	line2_1.src = "images/line2_1.png";
	line2_2 = new Image(500,27);
	line2_2.src = "images/line2_2.png";
	line2_3 = new Image(500,27);
	line2_3.src = "images/line2_3.png";
	line2_4 = new Image(500,27);
	line2_4.src = "images/line2_4.png";
}

function crossfade(id,line1,line2) {
	if (id == "#banner2") {
		var id2 = "#banner1";
	} else {
		id = "#banner1";
		var id2 = "#banner2";
	}
	if (line1 == "#line1_2") {
		var line1_1 = "#line1_2";
		var line1_2 = "#line1_1";
	} else {
		var line1_1 = "#line1_1";
		var line1_2 = "#line1_2";
	}
	if (line2 == "#line2_2") {
		var line2_1 = "#line2_2";
		var line2_2 = "#line2_1";
	} else {
		var line2_1 = "#line2_1";
		var line2_2 = "#line2_2";
	}
	
	if (browser=="Microsoft Internet Explorer") {
		$(line1_1).animate({opacity:0},2000,"swing", function() {
			$(this).css("left","980px");
			$(id).css("display", "none");
			$(id2).css("display", "block");			
			swapImage(id,line1_1,line2_1);
			$(line1_2).animate({opacity:1,left:"30px"},2000,"swing");
		});
		$(line2_1).animate({opacity:0},2000,"swing", function(){
			$(this).css("left","-500px");
			$(line2_2).animate({opacity:1,left:"50px"},2000,"swing");
		});
		window.setTimeout('crossfade("'+id2+'","'+line1_2+'","'+line2_2+'");',7000);
	} else {		
		$(id).animate({opacity:0},3000,"swing",function () {
			swapImage(id,line1_1,line2_1);
		});
		$(id2).animate({opacity:1},3000,"swing",function () {
			window.setTimeout('crossfade("'+id2+'","'+line1_2+'","'+line2_2+'");',7000);
		});
		$(line1_1).animate({opacity:0},2000,"swing", function() {
			$(this).css("left","980px");
			$(line1_2).animate({opacity:1,left:"30px"},2000,"swing");
		});
		$(line2_1).animate({opacity:0},2000,"swing", function(){
			$(this).css("left","-500px");
			$(line2_2).animate({opacity:1,left:"50px"},2000,"swing");
		});			
	}	
}

$(document).ready(function(){
	window.setTimeout('crossfade("#banner1","#line1_1","#line2_1");',6000);
});