var agt = navigator.userAgent.toLowerCase();
var is_netscape = document.layers;
var is_ie = (agt.indexOf("msie") != -1);
var is_konqueror = (agt.indexOf("konqueror") != -1);
var is_netscape7 = (agt.indexOf("netscape") != -1);
var is_mozilla = (agt.indexOf("mozilla") != -1 && agt.indexOf("gecko") != -1);
var is_opera = (agt.indexOf("opera") != -1);

var is_smart = (is_ie || is_mozilla || is_netscape7 || is_konqueror) && !is_opera;

function trim(sValue) {
    var oString = new String(sValue);
	return oString.replace(/(\s)*/g, "");
}

function disableSubmit(oForm) {
	for (i=0;i<oForm.elements.length;i++) {
		if (oForm.elements[i].type == "submit") {
			oForm.elements[i].disabled = true;
		}
	}
}

function openHelp(sCode) {
	var wndHelp = window.open("/help.php?code=" + sCode, "wndHelp", "top=150,left=200,width=500,height=400,scrollbars=yes,resizable=yes");
}