iframe上传图片

阅读更多

$.fn.extend({
	upload:function(){
		var hidden = $(this);
		var id=hidden.prop("id");
		var form=$("
").prop("id",id).prop("target", "uploadIframe").prop("action","/upload").prop("method","post").prop("enctype","multipart/form-data").css({"position":"absolute","top":hidden.parent().offset().top,"left":hidden.prev().length==0?hidden.parent().offset().left:(hidden.parent().offset().left+hidden.prev().width()+15),"width":"500px","height":"25px"}).appendTo($("body"));
		var file=$("").prop("type","file").prop("name","file").addClass("col-sm-6").appendTo(form);
		var submit = $("").prop("type","button").addClass("btn btn-default btn-sm").text("上传");
		var preview = $("").prop("target","blank").attr("preview","").css({"visibility":"hidden"}).append($("").prop("type","button").addClass("btn btn-default btn-sm").text("预览"));
		$("").addClass("col-sm-4").append(submit).append($("").text(" ").css({"width":"20px"})).append(preview).appendTo(form);
		submit.on("click", function(){
			if(!file.val()){
				alert("请选择文件");return;
			}
			$("#callbackFunction").remove();
			$("";