function StringToSafety(str) {
	var targetStr = str;
	if( targetStr.length >= 1 ) {
		targetStr = targetStr.replace( /</g , "&lt;" );
		targetStr = targetStr.replace( />/g , "&gt;" );
		targetStr = targetStr.replace( /"/g , "&quot;" );
		targetStr = targetStr.replace( /&/g , "&amp;" );
	}
	return targetStr;
}