function getQueryStringParameters()
{
	var queryString = window.location.search.substring( 1 );
	
	var params = new Array();
	var pairs = queryString.split( '&' ); // split the query string into "name=value" strings.

	for( var i = 0; i < pairs.length; i++ )
	{
		nameVal = pairs[ i ].split( '=' );
		params[ nameVal[ 0 ] ] = nameVal[ 1 ];
	}

	return params;
}

function getQueryStringParameterValue( pName )
{
	var params = getQueryStringParameters();
	
	if( params[ pName ] )
	{
		return params[ pName ];
	}
	
	return 0;
}

function setCookie( cName, cValue, cExpiryInDays )
{
	if( cExpiryInDays )
	{
		var date = new Date();
		date.setTime( date.getTime() + ( cExpiryInDays * 24 * 60 * 60 * 1000 ) );
		var expires = "; expires=" + date.toGMTString();
	}
	else 
	{
		var expires = "";
	}

	document.cookie = cName + "=" + cValue + expires + "; path=/";
}

function getCookie( cName ) {
	var nameEq = cName + "=";
	var ca = document.cookie.split( ';' );
	
	for( var i = 0; i < ca.length; i++ )
	{
		var c = ca[ i ];
		while( c.charAt( 0 ) == ' ' )
		{
			c = c.substring( 1, c.length );
		}
		
		if( c.indexOf( nameEq ) == 0) 
		{
			return c.substring(nameEq.length,c.length);
		}
	}

	return 0;
}

function deleteCookie( cName )
{
	setCookie( cName, "", -1 );
}