[Milos Vukotic]

Na w3c schools kaze da je onmouseover:

Supported by the following JavaScript objects:
layer, link

Po tome bi ovo trebalo da radi:

function PostaviParametre()
{
for(i=0; i<document.links.length; i++)
	{
	document.links[i].onmouseover = function() {alert ('Uradi nesto!')};
	}
}