$(document).ready(
	function() {
		
		function active(this_id) {
			//alert (this_id);
			switch(this_id) {
				case 'menu_opc1':
					$("#menu_opc1").css("background-position","0px 0px");
					$("#menu_opc2").css("background-position","-154px 0px");
					$("#menu_opc3").css("background-position","-308px 0px");
					$("#menu_opc4").css("background-position","-462px 0px");
					$("#menu_opc5").css("background-position","-616px 0px");
					$("#menu_opc6").css("background-position","-770px 0px");
					$("#menu_opc7").css("background-position","-924px 0px");
				break;
				case 'menu_opc2':
					$("#menu_opc1").css("background-position","0px 0px");
					$("#menu_opc2").css("background-position","-154px 0px");
					$("#menu_opc3").css("background-position","-308px 0px");
					$("#menu_opc4").css("background-position","-462px 0px");
					$("#menu_opc5").css("background-position","-616px 0px");
					$("#menu_opc6").css("background-position","-770px 0px");
					$("#menu_opc7").css("background-position","-924px 0px");
				break;
				case 'menu_opc3':
					$("#menu_opc1").css("background-position","0px 0px");
					$("#menu_opc2").css("background-position","-154px 0px");
					$("#menu_opc3").css("background-position","-308px 0px");
					$("#menu_opc4").css("background-position","-462px 0px");
					$("#menu_opc5").css("background-position","-616px 0px");
					$("#menu_opc6").css("background-position","-770px 0px");
					$("#menu_opc7").css("background-position","-924px 0px");
				break;
				case 'menu_opc4':
					$("#menu_opc1").css("background-position","0px 0px");
					$("#menu_opc2").css("background-position","-154px 0px");
					$("#menu_opc3").css("background-position","-308px 0px");
					$("#menu_opc4").css("background-position","-462px 0px");
					$("#menu_opc5").css("background-position","-616px 0px");
					$("#menu_opc6").css("background-position","-770px 0px");
					$("#menu_opc7").css("background-position","-924px 0px");
				break;
				case 'menu_opc5':
					$("#menu_opc1").css("background-position","0px 0px");
					$("#menu_opc2").css("background-position","-154px 0px");
					$("#menu_opc3").css("background-position","-308px 0px");
					$("#menu_opc4").css("background-position","-462px 0px");
					$("#menu_opc5").css("background-position","-616px 0px");
					$("#menu_opc6").css("background-position","-770px 0px");
					$("#menu_opc7").css("background-position","-924px 0px");
				break;
				case 'menu_opc6':
					$("#menu_opc1").css("background-position","0px 0px");
					$("#menu_opc2").css("background-position","-154px 0px");
					$("#menu_opc3").css("background-position","-308px 0px");
					$("#menu_opc4").css("background-position","-462px 0px");
					$("#menu_opc5").css("background-position","-616px 0px");
					$("#menu_opc6").css("background-position","-770px 0px");
					$("#menu_opc7").css("background-position","-924px 0px");
				break;
				case 'menu_opc7':
					$("#menu_opc1").css("background-position","0px 0px");
					$("#menu_opc2").css("background-position","-154px 0px");
					$("#menu_opc3").css("background-position","-308px 0px");
					$("#menu_opc4").css("background-position","-462px 0px");
					$("#menu_opc5").css("background-position","-616px 0px");
					$("#menu_opc6").css("background-position","-770px 0px");
					$("#menu_opc7").css("background-position","-924px 0px");
				break;
				/*default:
					lastBlock.css("background-position","0px 0px");*/
			}
		}
		
		function out(lastBlock_id) {
			//alert (lastBlock_id);
			switch(lastBlock_id) {
				case 'menu_opc1':
					$("#menu_opc1").css("background-position","0px bottom");
					$("#menu_opc2").css("background-position","-154px 0px");
					$("#menu_opc3").css("background-position","-308px 0px");
					$("#menu_opc4").css("background-position","-462px 0px");
					$("#menu_opc5").css("background-position","-616px 0px");
					$("#menu_opc6").css("background-position","-770px 0px");
					$("#menu_opc7").css("background-position","-924px 0px");
				break;
				case 'menu_opc2':
					$("#menu_opc1").css("background-position","0px 0px");
					$("#menu_opc2").css("background-position","-154px bottom");
					$("#menu_opc3").css("background-position","-308px 0px");
					$("#menu_opc4").css("background-position","-462px 0px");
					$("#menu_opc5").css("background-position","-616px 0px");
					$("#menu_opc6").css("background-position","-770px 0px");
					$("#menu_opc7").css("background-position","-924px 0px");
				break;
				case 'menu_opc3':
					$("#menu_opc1").css("background-position","0px 0px");
					$("#menu_opc2").css("background-position","-154px 0px");
					$("#menu_opc3").css("background-position","-308px bottom");
					$("#menu_opc4").css("background-position","-462px 0px");
					$("#menu_opc5").css("background-position","-616px 0px");
					$("#menu_opc6").css("background-position","-770px 0px");
					$("#menu_opc7").css("background-position","-924px 0px");
				break;
				case 'menu_opc4':
					$("#menu_opc1").css("background-position","0px 0px");
					$("#menu_opc2").css("background-position","-154px 0px");
					$("#menu_opc3").css("background-position","-308px 0px");
					$("#menu_opc4").css("background-position","-462px bottom");
					$("#menu_opc5").css("background-position","-616px 0px");
					$("#menu_opc6").css("background-position","-770px 0px");
					$("#menu_opc7").css("background-position","-924px 0px");
				break;
				case 'menu_opc5':
					$("#menu_opc1").css("background-position","0px 0px");
					$("#menu_opc2").css("background-position","-154px 0px");
					$("#menu_opc3").css("background-position","-308px 0px");
					$("#menu_opc4").css("background-position","-462px 0px");
					$("#menu_opc5").css("background-position","-616px bottom");
					$("#menu_opc6").css("background-position","-770px 0px");
					$("#menu_opc7").css("background-position","-924px 0px");
				break;
				case 'menu_opc6':
					$("#menu_opc1").css("background-position","0px 0px");
					$("#menu_opc2").css("background-position","-154px 0px");
					$("#menu_opc3").css("background-position","-308px 0px");
					$("#menu_opc4").css("background-position","-462px 0px");
					$("#menu_opc5").css("background-position","-616px 0px");
					$("#menu_opc6").css("background-position","-770px bottom");
					$("#menu_opc7").css("background-position","-924px 0px");
				break;
				case 'menu_opc7':
					$("#menu_opc1").css("background-position","0px 0px");
					$("#menu_opc2").css("background-position","-154px 0px");
					$("#menu_opc3").css("background-position","-308px 0px");
					$("#menu_opc4").css("background-position","-462px 0px");
					$("#menu_opc5").css("background-position","-616px 0px");
					$("#menu_opc6").css("background-position","-770px 0px");
					$("#menu_opc7").css("background-position","-924px bottom");
				break;
				/*default:
					lastBlock.css("background-position","0px 0px");*/
			}
		}

		lastBlock = $("#menu_opc1");
		maxWidth = 154;
		minWidth = 104;	
		$(".menu li a").hover(
			function() {
				active ($(this).attr('id'));
				//alert ('lastBlock.id   ===   ' + lastBlock.attr('id') + '----------this.id   ===   ' + this.id);
				if (lastBlock.attr('id') != this.id) {
					//alert ('over');
					$(lastBlock).animate({width: minWidth+"px"}, {queue:false, duration:368});
					$(this).animate({width: maxWidth+"px"}, {queue:false, duration:368});
				}//if (lastBlock.attr('id') != this.id) {
			}//function() {
		);//$("ul li a").hover(

		$(".menu li a").mouseout(
			function() {
				out (lastBlock.attr('id'));
				//alert ('lastBlock.id   ===   ' + lastBlock.attr('id') + '----------this.id   ===   ' + this.id);
				if (lastBlock.attr('id') != this.id) {
					//alert ('out');
					$(lastBlock).animate({width: maxWidth+"px"}, {queue:false, duration:368});
					$(this).animate({width: minWidth+"px"}, { queue:false, duration:368});
				}//if (lastBlock.attr('id') != this.id) {
			}//function() {
		);//$("ul li a").mouseout(

		$(".menu li a").click(
			function() {
				active ($(this).attr('id'));
				lastBlock = $(this);
			}//$("ul li a").click(
		);//$("ul li a").click(

	}//function() {
);//$(document).ready(