layui弹窗宽度固定高度自适应界面

//默认上下15px的边距高度，可根据需要修改
function layuiDialogFitScreen(){
	var layui_title_height=$(window.parent.document).find(".layui-layer-title").height();
	var border_margin=30;
	var minH=150;
	var _margin=0;
	var _top=$(window.parent.document).find(".layui-layer-iframe").css("top").split("px")[0];
	$("html").height($("body").height());
	if($(document).height()+layui_title_height>$(window.parent.document).height()-border_margin){
		 _margin=-(_top-border_margin/2)+'px';
		 var mContentH=($(window.parent.document).height()-layui_title_height-border_margin)+'px';
		 $(window.parent.document).find("iframe").css({"height":mContentH});
		 $(window.parent.document).find(".layui-layer-iframe").css({"height":mContentH,"top":_top,"margin-top":_margin});
	}else{
		$(window.parent.document).find("iframe").css("height",($(document).height())+'px');
		$(window.parent.document).find(".layui-layer-iframe").css("height",($(document).height())+'px');
		if($(document).height()>minH){
			_margin=-($(document).height()-minH)/2+'px';
			$(window.parent.document).find(".layui-layer-iframe").css("margin-top",_margin);
		}	
	}
}

//删除delH高度内容后内容自适应界面高度
function deleteFitView(delH){
    var layui_title_height=$(window.parent.document).find(".layui-layer-title").height();
    var mH=$("html").height()-delH;
    var border_margin=30;
    $("html").height(mH);
    if( $("html").height()+layui_title_height<=$(window.parent.document).height()-border_margin){
		$(window.parent.document).find("iframe").height(mH);
		$(window.parent.document).find(".layui-layer-iframe").height(mH);
		layuiDialogFitScreen();
	}
	

}