function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}

function newwin() {

	if (!document.getElementsByTagName) return false;

	var lnks = document.getElementsByTagName('a');

	for (var i=0;i<lnks.length;i++) {

		if (lnks[i].className == 'newwin') {

			lnks[i].onclick = function () { window.open(this.getAttribute('href')); return false; };
			lnks[i].onkeypress = lnks[i].onclick;
            
		}

	}

    return true;

}

addLoadEvent(function() {
  newwin();
});