$("#hang-xiao").click(function(){

var lineHeight = $("div#readercontainer").css("line-height");

var lineHeightNum = parseInt(lineHeight);

if(lineHeightNum >25){

var lineHN = eval(lineHeightNum-4);

$("div#readercontainer").css("line-height",lineHN+"px");

$("#hang-da").html("T+");

var lineHeight = $("div#readercontainer").css("line-height");

var lineHeightNum = parseInt(lineHeight);

if(lineHeightNum==22){

$("#hang-xiao").html("T");

}

//添加cookie记录

setCookie("readsetlineheihgt",lineHN,30);

}

});

//行间距设置减小

$("#hang-da").click(function(){

var lineHeight = $("div#readercontainer").css("line-height");

var lineHeightNum = parseInt(lineHeight);

if(lineHeightNum T-");

var lineHeight = $("div#readercontainer").css("line-height");

var lineHeightNum = parseInt(lineHeight);

if(lineHeightNum==46){

$("#hang-da").html("T");

}

//添加cookie记录

setCookie("readsetlineheihgt",lineHN,30);

}

});

//切换阅读背景颜色

$("d_bg dl span").each(function(index,element){

$(this).click(function(){

var backColorValue = $(this).attr('class');

$("body").removeClass();

$("body").addClass(backColorValue);

//添加cookie记录

setCookie("readSetBackground",backColorValue,30);

});

});

//切换关灯效果