Okay, here's the solution:
var dom = dw.getDocumentDOM(); //get the dom of the current
document
var skuCondMeta = dom.getElementsByTagName("meta");
for ( counter = 0; counter < skuCondMeta.length;
counter++)
{
if (skuCondMeta[counter].name == "some_name")
alert(skuCondMeta[counter].content);
}