// JavaScript Document

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

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//µ×²¿¿ØÖÆ

function footposition() {
	if(!document.getElementById("foot")) return false;
	var foot = document.getElementById("foot");
	if(document.all) {
		if(document.body.clientHeight < document.documentElement.offsetHeight) {
			foot.style.position = 'absolute';
			foot.style.bottom = '0';
		}
	}
	if(window.opera&&navigator.userAgent.match(/opera/gi)) {
		foot.style.position = '';
		foot.style.bottom = '';
	}
	if(document.body.clientHeight < window.innerHeight) {
		foot.style.position = 'absolute';
		foot.style.bottom = '0';
	}
}


addLoadEvent(footposition);

function ons(){
	this.style='menubg2';homes.className='menubg1';
}

function offs(){
	this.className='menubg1';
	document.getElementById('homes').className='menubg2';
}