Created
September 29, 2013 05:28
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var getElementsByClassName = function (searchClass, node,tag) { | |
if(document.getElementsByClassName){ | |
var nodes = (node || document).getElementsByClassName(searchClass),result = []; | |
for(var i=0 ;node = nodes[i++];){ | |
if(tag !== "*" && node.tagName === tag.toUpperCase()){ | |
result.push(node) | |
} | |
} | |
return result | |
}else{ | |
node = node || document; | |
tag = tag || "*"; | |
var classes = searchClass.split(" "), | |
elements = (tag === "*" && node.all)? node.all : node.getElementsByTagName(tag), | |
patterns = [], | |
current, | |
match; | |
var i = classes.length; | |
while(--i >= 0){ | |
patterns.push(new RegExp("(^|\\s)" + classes[i] + "(\\s|$)")); | |
} | |
var j = elements.length; | |
while(--j >= 0){ | |
current = elements[j]; | |
match = false; | |
for(var k=0, kl=patterns.length; k<kl; k++){ | |
match = patterns[k].test(current.className); | |
if (!match) break; | |
} | |
if (match) result.push(current); | |
} | |
return result; | |
} | |
} |
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