var $ = require('common:ui/jquery');


function domCenter(opt){
this.options = $.extend({
dom:"",
height: 0,
domCss:{},
domchange:{},
foot:false,
head:false
}, opt || {});
this.init();
}


domCenter.prototype = {
config:{
wH : $(window).height()
},
init: function(){
this.bindEvent();
},
bindEvent:function(){
var that = this;
that.onload();
$(window).resize(function(){
that.config.wH  = $(window).height();
that.onload();
})
},
onload: function(){
var that = this;
var oH = $(that.options.dom).height() + 150;
if(that.config.wH < oH + that.options.height){
if(!that.options.head){
$('.aaz_header').css("position","relative");
}
            if(!that.options.foot){
$('.aaz_footer').css("position","relative");
}
            $(that.options.dom).css(that.options.domCss);
        }else{
        if(!that.options.head){
$('.aaz_header').css("position","absolute");
}
if(!that.options.foot){
$('.aaz_footer').css("position","absolute");
}
            $(that.options.dom).css(that.options.domchange);
        }
}
};


return domCenter;