//下拉菜单 例调用：Nav('#nav');
function Nav(id){
	var oNav = $(id);
	var aLi = oNav.find('li');
	
	aLi.hover(function (){
        $(this).addClass('on');
	},function (){
        $(this).removeClass('on');
	})	
};







// 二级页头部大图高度
function SubImgHeight(){
    var iWSon = document.documentElement.clientWidth;
    var oSubbanner = document.getElementById('subbanner');

    if(iWSon>=1920){
    	oSubbanner.style.height = 350+'px';
    }else if(iWSon<1920){
    	oSubbanner.style.height = iWSon * (350/1920)+'px';
	}

	window.onscroll = window.onresize = function (){
		var iWSon = document.documentElement.clientWidth;
		if(iWSon>=1920){
	        oSubbanner.style.height = 350+'px';
	    }else if(iWSon<1920){
			oSubbanner.style.height = iWSon * (350/1920)+'px';
		}
	}

}

//gotop

$('.goTop').click(function(){

    $('body,html').stop().animate({scrollTop:0});

    return false;

});
        
 //大图切换高度问题
function ImgHeight(){
    function ImgHeight02(){
        var iWSon = document.documentElement.clientWidth;
        if(iWSon>=1920){
            // $('.Banner ').css('height', 500+'px');
            $('.Banner .slides > li').css('height', 450+'px');
            

        }else{
            // $('.Banner').css('height',iWSon * (500/1920)+'px');
            $('.Banner .slides > li').css('height', iWSon * (450/1920)+'px');
        }
    }
    ImgHeight02();
        $(window).resize(function(){
            
            ImgHeight02();
        })
        
}