function getURLParameters(key) 
{
	var sURL = window.document.URL.toString();
	
	if( sURL.indexOf("?") > 0 )
	{
		var arrParams = sURL.split("?");	
		var arrURLParams = arrParams[1].split("&");
		
		var arrParamNames = new Array(arrURLParams.length);
		
		for( var i = 0; i < arrURLParams.length; i++ )
		{
			var sParam = arrURLParams[i].split("=");
			
			if( sParam[1] != "" )
			{
				if( sParam[0] == key )
					return sParam[1];
			}
		}
	}
	
	return null;
}