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IE<9 indexOf polyfill
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if(!Array.prototype.indexOf){Array.prototype.indexOf=function(b){var a=this.length>>>0;var c=Number(arguments[1])||0;c=(c<0)?Math.ceil(c):Math.floor(c);if(c<0){c+=a}for(;c<a;c++){if(c in this&&this[c]===b){return c}}return -1}}; |
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if (!Array.prototype.indexOf) | |
{ | |
Array.prototype.indexOf = function(elt /*, from*/) | |
{ | |
var len = this.length >>> 0; | |
var from = Number(arguments[1]) || 0; | |
from = (from < 0) | |
? Math.ceil(from) | |
: Math.floor(from); | |
if (from < 0) | |
from += len; | |
for (; from < len; from++) | |
{ | |
if (from in this && | |
this[from] === elt) | |
return from; | |
} | |
return -1; | |
}; | |
} |
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