// JScript 文件

//-------------------------操作下拉框---------------------
  			
    function ChangeType(val)
    {
	    switch(val)
	    {
		    case "--请选择--":
		    case "展会回顾":
		    case "展商访谈":
		    case "展会指南":
			    document.getElementById("beginDate").style.display = "none";
			    document.getElementById("endDate").style.display = "none";
			    break;
		    case "展会预告":
		    case "展会信息":
		    case "国际展会":
		        document.getElementById("beginDate").style.display = "";
			    document.getElementById("endDate").style.display = "";
			    break;

	    }
    }
    //---------------隐藏上上传控件-------------------
    function hidden()
    {
                
			    document.getElementById("beginDate").style.display = "none";
			    document.getElementById("endDate").style.display = "none";
    }