function check_file_type(portal, file){

var sfile = file.substr(-4);		


if (sfile.length > 2){

if (portal == "flash"){

if (sfile != ".swf"){
alert("You may not upload that file type.  You may only upload:\n\n.swf\n\n---------------------------------------------------\n\nYou tried to upload:\n\n" + sfile + "");
document.sub_flash.swf.value = "";
}

if (sfile == ".swf"){
var swf_i = document.getElementById('swf_i');

var path = file;

var parts = path.split("/"); 
var filename = parts[parts.length - 1];

alert(filename);

swf_i.style.display = "inline";

swf_i.innerHTML = "<div style='border-bottom: 1px dotted #000000;'></div> <span style='font-size: 11pt;'><img src='files/loadbar.gif'><br/>File:&nbsp;&nbsp;" + filen + "<br/></span> <div style='border-top: 1px dotted #000000;'></div>";
}

}
}
}