function trim(str, chars) {
	return ltrim(rtrim(str, chars), chars);
}

function ltrim(str, chars) {
	chars = chars || "\\s";
	return str.replace(new RegExp("^[" + chars + "]+", "g"), "");
}

function rtrim(str, chars) {
	chars = chars || "\\s";
	return str.replace(new RegExp("[" + chars + "]+$", "g"), "");
}

function MakeLinkSafe(){
	var e = document.getElementById('c_link')
	str = trim(e.value);
	if(str.substr(0, 7) == 'http://'){
		e.value = str.substr(7);
	}
	//return true;
}