+function formsub_hilite(obj)
+{
+ obj.className = 'input_sub';
+ addEvent(obj, "focus", function () { this.className = 'input_sub_hi'; });
+ addEvent(obj, "blur", function () { this.className = 'input_sub'; });
+}
+
+// return the value of the radio button that is checked
+// return an empty string if none are checked, or
+// there are no radio buttons
+function get_checked_value(radioObj) {
+ if(!radioObj)
+ return "";
+ var radioLength = radioObj.length;
+ if(radioLength == undefined)
+ if(radioObj.checked)
+ return radioObj.value;
+ else
+ return "";
+ for(var i = 0; i < radioLength; i++) {
+ if(radioObj[i].checked) {
+ return radioObj[i].value;
+ }
+ }
+ return "";
+}
+
+// set the radio button with the given value as being checked
+// do nothing if there are no radio buttons
+// if the given value does not exist, all the radio buttons
+// are reset to unchecked
+function set_checked_value(radioObj, newValue) {
+ if(!radioObj)
+ return;
+ var radioLength = radioObj.length;
+ if(radioLength == undefined) {
+ radioObj.checked = (radioObj.value == newValue.toString());
+ return;
+ }
+ for(var i = 0; i < radioLength; i++) {
+ radioObj[i].checked = false;
+ if(radioObj[i].value == newValue.toString()) {
+ radioObj[i].checked = true;
+ }
+ }
+}
+
+function url_append_arg(url, name, value)
+{
+ var pos, sep, pref, rest;
+
+ if ((pos = url.indexOf('?'+name+'=')) == -1) {
+ pos = url.indexOf('&'+name+'=');
+ }
+ if (pos == -1) {
+ if ((pos = url.indexOf('?')) != -1)
+ sep = '&';
+ else
+ sep = '?';
+
+ return (url+sep+name+"="+encodeURIComponent(value));
+ }
+ else {
+ pref = url.substring(0, pos+1);
+ rest = url.substring(pos+1);
+ // alert("rest: "+rest+" pos: "+pos);
+ if ((pos = rest.indexOf('&')) != -1) {
+ rest = rest.substring(pos);
+ }
+ else {
+ rest = "";
+ }
+ return (pref+name+"="+encodeURIComponent(value)+rest);
+ }
+}
+
+function url_append_args(url)
+{
+ var i, ret;
+
+ ret = url;
+ for (i = 1 ; i < arguments.length-1 ; i+= 2) {
+ ret = url_append_arg(ret, arguments[i], arguments[i+1]);
+ }
+
+ return (ret);
+}
+
+function url_complete(parent, url)
+{
+ var p, p2, rest;
+ var host = "", path = "";
+
+ // host extraction
+ p = parent.indexOf("://");
+ if (p > -1) {
+ rest = parent.substring(p+3);
+ p2 = rest.indexOf("/");
+ if (p2 > -1) {
+ host = parent.substring(0, p+3+p2);
+ rest = parent.substring(p+3+p2);
+ }
+ else {
+ host = rest;
+ rest = "";
+ }
+ }
+ else {
+ rest = parent;
+ }
+
+ // path extraction
+ p = rest.lastIndexOf("/");
+ if (p > -1) {
+ path = rest.substring(0, p+1);
+ }
+
+ // alert("host: ["+host+"] path: ["+path+"]");
+ if (url.substring(0,6) == 'http:/' || url.substring(0,7) == 'https:/' || url.substring(0,4) == 'ws:/') {
+ return (url);
+ }
+ else if (url.substring(0,1) == '/') {
+ return (host+url);
+ }
+ else {
+ return (host+path+url);
+ }
+}
+
+function download_mgr(url)
+{
+ var ifra;
+
+ if ((ifra = $('the_downloader')) == null) {
+ ifra = document.createElement("iframe");
+ ifra.style.display = "none";
+ ifra.id = 'the_downloader';
+ document.body.appendChild(ifra);
+ }
+
+ ifra.contentWindow.location.href = url;
+
+ this.ifra = ifra;
+}
+
+download_mgr.prototype = {
+ ifra: null
+}