function checkallSearch() {

	for( var i=0;i<document.forms['searchform'].sites.length;i++ ) {
		document.forms['searchform'].sites[i].checked = true;
	}

}

function uncheckAllSearch() {

	for( var i=0;i<document.forms['searchform'].sites.length;i++ ) {
		document.forms['searchform'].sites[i].checked = false;
	}

}