function show(numInput) {

        if(numInput==0) document.getElementById("select_resize").style.display = 'none';
		else  document.getElementById("select_resize").style.display = '';

		for (i = 1;i<=5;i++) {
			if(i<=numInput) document.getElementById("input_div"+ i).style.display = '';
			else 	document.getElementById("input_div"+ i).style.display = 'none';

		}
	
}
function checkform(){

   if(document.uploadfile.numtopic.value=="0"){
	alert('please choose number of files!! ');
   }else{
	document.uploadfile.button_upload.disabled=true;
    document.uploadfile.button_upload.value='Uploading.....';
	document.uploadfile.submit();
   }

}
function check()
{
	if((document.uploadfile.myfile1.value=="")||(document.uploadfile.myfile2.value=="")||(document.uploadfile.myfile3.value=="")||(document.uploadfile.myfile4.value=="")||	(document.uploadfile.myfile5.value==""))
	{
		alert("กรุณากรอกข้อมูลให้ครบ");
		return false;
	}
	else
		return true;
}