javascript - I am not able to hide my p tags in javasctript -

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i don't know having error when run script says undefined in firebug.not telling me undefined.here javascript.

var elements = document.getelementsbyname("p"); var length = elements.length;  (var = 0; < length; i++) {     elements[i].style.display='none'; }

i think want getelementsbytagname:

var elements = document.getelementsbytagname("p"); var length = elements.length;  (var = 0; < length; i++) {     elements[i].style.display='none'; }

document.getelementsbyname("p"); returns elements have name attribute of p such as:

<span name="p"></span>

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