DP_QueryString = new Object();

DP_QueryString.get = function(Name, ReturnStyle, QueryString) {

	var AllElements, CurElement, CurName, CurVal, ReturnVal

		// Set the Name
	Name = Name.replace(/^\s*|\s*$/g,"");
		// Init the return
	ReturnVal = null;

		// Determine the string to use
	if ( !QueryString ) {
		QueryString = location.search;
	};
		// Split the query string on the ampersand (the substring removes the question mark)
	AllElements = QueryString.substring(1).split('&');

		// Loop over the string
	for( var Cnt = 0; Cnt < AllElements.length; Cnt++) {
			// Split the current element on the equals sign
		CurElement = AllElements[Cnt].split('=');
			// Unescape and Trim the returned name
		CurName = unescape(CurElement[0]).replace(/^\s*|\s*$/g,"");
		if ( Name == CurName ) {
				// Generate the array if needed
			if ( !ReturnVal ) { ReturnVal = new Array };
				// Get the Value
			CurVal = CurElement[1];
				// Determine how the value should be represented
			if ( CurVal ) {
				CurVal = unescape(CurVal);
			} else {
				CurVal = "";
			};
			ReturnVal[ReturnVal.length] = CurVal;
		};
	};

		// Return the value
	if ( ReturnVal ) {
		switch ( ReturnStyle ) {
			case "first":
				return ReturnVal[0];
				break;
			case "last":
				return ReturnVal[ReturnVal.length - 1];
				break;
			case "list":
				return ReturnVal.toString();
				break;
			default:
				return ReturnVal;
				break
		};
	} else {
		return ReturnVal;
	};

};

DP_QueryString.getAll = function(ReturnStyle, QueryString) {

	var QS, AllElements, CurElement, CurName, CurVal

	QS = new Object();

		// Determine the string to use
	if ( !QueryString ) {
		QueryString = location.search;
	};
		// Split the query string on the ampersand (the substring removes the question mark)
	AllElements = QueryString.substring(1).split('&');

		// Loop over the elements
	for( var Cnt = 0; Cnt < AllElements.length; Cnt++) {
			// Split the current element on the equals sign
		CurElement = AllElements[Cnt].split('=');
		CurName = unescape(CurElement[0]).replace(/^\s*|\s*$/g,"");
			// Call the get method to obtain the value
		if ( CurName.length > 0 ) {
			QS[CurName] = DP_QueryString.get(CurName, ReturnStyle);
		};
	};

		// Return the object
	return QS;

};

DP_QueryString.generate = function(Ob) {

	var QS = "?";

		// Sub Function to create the Params
	var generateParam = function(CurProp, CurVal) {
		if (!CurVal) {
			return escape(CurProp) + "&";
		} else {
			return CurProp + "=" + escape(CurVal) + "&";
		};
	};

		// Iterate over the passed object
	for ( var CurProp in Ob ) {
		if ( typeof Ob[CurProp] != "function" ) {
			var CurVal = Ob[CurProp];
			if ( typeof CurVal == "object" && CurVal.constructor == Array ) {
				for ( var Cnt = 0; Cnt < CurVal.length; Cnt++ ) {
					QS += generateParam(CurProp, CurVal[Cnt]);
				};
			} else {
				if ( CurVal != undefined ) {
					QS += generateParam(CurProp, CurVal);
				};
			};
		};
	};

		// Return the object (removing the last ampersand)
	return QS.substring(0, QS.length - 1);

};