function initPage()
{
    var _a = document.getElementsByTagName('a');
    if (_a) {
        for (var i=0; i<_a.length; i++) {
            if (_a[i].className.indexOf('room') != -1) {
                _a[i].c = _a[i].className;
                _a[i].onmouseover = function(){
                    for (var j=0; j<_a.length; j++) {
                        if(_a[j].className.indexOf(this.c) != -1) {
                           _a[j].className += ' hover';
                        }
                    }
                }
                _a[i].onmouseout = function(){
                    for (var j=0; j<_a.length; j++) {
                        if(_a[j].className.indexOf(this.c) != -1) {
                           _a[j].className = _a[j].className.replace('hover','');
                        }
                    }
                }
            }
        }
    }
}
if (window.addEventListener)
	window.addEventListener("load", initPage, false);
else if (window.attachEvent)
	window.attachEvent("onload", initPage);