window.onload = function(){
	if(navigator.userAgent.match(/MSIE (5\.5|6\.)/)) {
		setPngFilter();
	}
}
function setPngFilter(){
	var imgs =document.getElementsByTagName("img");
	for (var i=0; i<imgs.length;i++){
		var img = imgs[i];
		if(imgs[i].src && imgs[i].src.match(/\.(png|PNG)/)){
			var html = '<div style="width:'+img.width+'px; height:'+img.height+'px; filter:  progid:DXImageTransform.Microsoft.AlphaImageLoader(src=\''+img.src+'\',sizingMethod=\'image\');"></div>';
			img.outerHTML=html;
			i -=1;
		}
	}
}


/*var b_show = 0;
function toggleContactDisplay(){
	var $ = function(id){return document.getElementById(id)}
	var display = "0px";
	var hidden = "-9999px";
	if(!b_show){
		document.body.style.backgroundColor = "#999999";
		$("news").style.left=hidden;
		$("contact").style.left=display;
		$("navi_btn").src="img/btn_back.gif";
		$("navi_btn").alt="BACK";
		b_show=1;
	}else {
		document.body.style.backgroundColor = "#A9BFA2";
		$("news").style.left=display;
		$("contact").style.left=hidden;
		$("navi_btn").src="img/btn_contact.gif";
		$("navi_btn").alt="CONTACT";
		b_show=0;
	}
}*/