1.
var x = "text|aaaa|text text|cccc| text|none|text |bbbb|text |cccc| text |aaaa|text text|dddd|text"
var y = {aaaa:'_w1_', bbbb:'_w2_', cccc:'_w3_', dddd:'_w4_'}
alert( x.replace(/\|(\w*?)\|/g, function(a,b){ return y[b]||a } ) )
2.
http://javascript.ru/unsorted/top-10...e-deletecookie