var cfg = {title:'提交失败', contentHtml:$('<div>请检查填报内容!</div>').css('font-size','25px').css('margin-left','20%').css('margin-top','20%'),top:'50%',left:'50%'};
var cfg = {title:'提交失败', contentHtml:('<div>'+a+'</div>').css('font-size','15px').css('text-align','center').css('margin-top','10%'),top:'50%',left:'50%'};