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((w) ->
w.gl ?= {}
w.gl.utils ?= {}
w.gl.utils.getUrlParameter = (sParam) ->
sPageURL = decodeURIComponent(window.location.search.substring(1))
sURLVariables = sPageURL.split('&')
sParameterName = undefined
i = 0
while i < sURLVariables.length
sParameterName = sURLVariables[i].split('=')
if sParameterName[0] is sParam
return if sParameterName[1] is undefined then true else sParameterName[1]
i++
# #
# @param {Object} params - url keys and value to merge
# @param {String} url
# #
w.gl.utils.mergeUrlParams = (params, url) ->
newUrl = decodeURIComponent(url)
for paramName, paramValue of params
pattern = new RegExp "\\b(#{paramName}=).*?(&|$)"
if url.search(pattern) >= 0
newUrl = newUrl.replace pattern, "$1#{paramValue}$2"
else
newUrl = "#{newUrl}#{(if newUrl.indexOf('?') > 0 then '&' else '?')}#{paramName}=#{paramValue}"
newUrl
) window
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