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

function addResizeEvent(func) {
  var oldonresize = window.onresize;
  if (typeof window.onresize != 'function') {
    window.onresize = func;
  } else {
    window.onresize = function() {
      oldonresize();
      func();
    }
  }
}

function subMenuHooverIn(object){
	object.style.backgroundColor='#d4d4d4';
}
function subMenuHooverOut(object){
	object.style.backgroundColor='';
}
function menuHooverIn(object){
	object.style.backgroundColor='#1f7fab';
}
function menuHooverOut(object){
	object.style.backgroundColor='';
}

function setProductOptions(specId) {
	obj = document.getElementById('meeropties');
	for (i = 0; i < obj.childNodes.length; i++) {
		obj.childNodes.item(i).style.display='none';
	}
	obj = document.getElementById('meeropties_'+specId).style.display='block';
}