function addToAttributeList(sAttribute, sValue, bPrepend) {
		var sAttributes = this.attr(sAttribute);
		if (!sAttributes) {
			return this.attr(sAttribute, sValue);
		}

		var aAttributes = sAttributes.split(" ");
		if (aAttributes.indexOf(sValue) == -1) {
			bPrepend ? aAttributes.unshift(sValue) : aAttributes.push(sValue);
			this.attr(sAttribute, aAttributes.join(" "));
		}

		return this;
	}
Adds space separated value to the given attribute.

This method ignores when the value is already available for the given attribute.

@this {jQuery} jQuery context
@param {string} sAttribute The name of the attribute.
@param {string} sValue The value of the attribute to be inserted.
@param {string} [bPrepend=false] Whether prepend or not
@return {jQuery} <code>this</code> to allow method chaining.
@author SAP SE
@function
@private