function change_over(obj,i){
	$(".pxg_div1 li").css("backgroundImage","");
	$(".pxg_div1 li").css("color","#00f");
	$(".pxg_div1 li a").css("color","#00f");
	$(obj).css("color","#fff").children("a").css("color","#fff");
	$(obj).css("backgroundImage","url(tupian/bg_1.png)");
	$("[id^=div_]").each(function(){$(this).css("display","none");});
	$("#div_"+i).css("display","block");
}

function change_over_zck(obj,i){
	$(".zcktTop li").css("backgroundImage","");
	$(".zcktTop li").children("a").css("color","#000");
	$(obj).children("a").css("color","#fff");
	$(obj).css("backgroundImage","url(tupian/bg_1.png)");
	$(".zcktang .zcktT").each(function(){$(this).css("display","none");});
	i=i-1;
	$(".zcktang .zcktT:eq("+i+")").css("display","block");
}
function change_over_xwdtai(obj,i){
	$(".ul4 li").css("backgroundImage","");
	$(".ul4 li").children("a").css("color","#000");
	$(obj).children("a").css("color","#00f");
	$(obj).css("backgroundImage","url(tupian/bg.jpg)");
	$("[id^=new_]").each(function(){$(this).css("display","none");});
	$("#new_" + i).css("display","block");
}

function change_over_xwdtai1(){
	$(".ul4 li").css("backgroundImage","");
	$(".ul4 li").children("a").css("color","#000");
	$("[id^=new_]").each(function(){$(this).css("display","none");});
	$("#new_" + 0).css("display","block");
}
function change_over_xxgk(obj,i){
	$(".xxgkTop li").css("backgroundImage","");
	$(".xxgkTop li").children("a").css("color","#000");
	$(obj).children("a").css("color","#fff");
	$(obj).css("backgroundImage","url(tupian/bg_1.png)");
	$(".xxgkai .zcktT").each(function(){$(this).css("display","none");});
	i=i-1;
	$(".xxgkai .zcktT:eq("+i+")").css("display","block");
	
}
function change_over_cmLeftsan(obj,i){
	
	$(".cmTitle li").css("backgroundImage","");
	$(".cmTitle li").children("a").css("color","#000");
	$(obj).children("a").css("color","#00f");
	$(obj).css("backgroundImage","url(tupian/tu42.jpg)");
	$("[id^=cmLeftsan_]").each(function(){$(this).css("display","none");});
	$("#cmLeftsan_"+i).css("display","block");
}