function check_form() {
	if(document.forms['frm'].nickName.value!=''&&(document.forms['frm'].story.value!=''||document.forms['frm'].uploadFile.value!='')&&document.forms['frm'].title.value!='')
	{
		if (document.forms['frm'].uploadFile.value!='') 
		{
			var fileName = document.forms['frm'].uploadFile.value;
			var re = new RegExp(/^(.*)\.(.*)$/);
	      		var ext = fileName.replace(re, "$2");
			ext = ext.toLowerCase();
			if (ext != 'txt' && ext != 'doc' && ext != 'rtf') {
				alert ('Only .txt, .rtf and .doc files are allowed!');
				return false;
			}
		}
        	postIt();
	}
        else
	{
        	alert('Please Fill Title, NickName and Story or File Fields');
        }

        return false;
}