function trim(str) {
	return str.replace(/^\s+|\s+$/g, "");
}

function ltrim(str) {
	return str.replace(/^\s+/, "");
}

function rtrim(str) {
	return str.replace(/\s+$/, "");
}

function change_img(path, pathATag) {
	document.getElementById("changeImg").src = path;
	document.getElementById("changeImgATag").href = pathATag;
}

function generateEmailCurrentPageLink() {
	var loc = window.location.href;
	var subject = getLastFolder(loc);
	document.write('<a id="link_email" href="mailto:?subject=' + subject + '&body=' + loc + '">Email This</a>');
}

function isIE() {
	return navigator.appName == "Microsoft Internet Explorer";
}

function getLastFolder(path) {
	var result = "";
	if (path != null) {
		var idx2 = path.lastIndexOf('/');
		var idx1 = path.substring(0, idx2).lastIndexOf('/') + 1;
		result = path.substring(idx1, idx2);
	}
	return result;
}