function urldecode(str){var histogram={};var ret=str.toString();var replacer=function(search,replace,str){var tmp_arr=[];tmp_arr=str.split(search);return tmp_arr.join(replace);};histogram["'"]='%27';histogram['(']='%28';histogram[')']='%29';histogram['*']='%2A';histogram['~']='%7E';histogram['!']='%21';histogram['%20']='+';for(replace in histogram){search=histogram[replace];ret=replacer(search,replace,ret)}
ret=decodeURIComponent(ret);return ret;}