function imgReset() { 	var temp = ''; 	for( i=1; i < 6; i++){ 		temp = 'master-ad'+i+'-img'; 		$("#"+temp).attr("src","/images/green_box.png");  	} }  function adCopyReset() { 	var temp = ''; 	for( i=1; i < 6; i++){ 		temp = 'master-ad'+i; 		$("#"+temp).css("visibility","hidden"); 	} }  function imgChange(obj) { 	var objImage = obj + '-img'; 	var bgImage = "url('/images/"+obj+".jpg') no-repeat"; 	/* Change master-adNav*/ 	imgReset(); 	$("#"+objImage).attr("src","/images/white_box.png"); 	/* Change master-ad background */ 	$("#master-ad").css("background", bgImage); 	/* Change master-adCopy */ 	adCopyReset(); 	$("#"+obj).css("visibility","visible"); }  function nextImgChange(objId) { 	var obj = ''; 	var tempId = ((objId % 5)+1); 	obj = 'master-ad'+tempId; 	imgChange(obj); }