function checkApp() {
	if (navigator.appName == 'Microsoft Internet Explorer') {
		return true;
	}
	return false;
}

function collapseBox(id){
	var box= id;
	var transdur = 0.25;
	if (checkApp()) {
		// for internet explorer
	var c = document.getElementsByClassName("c",box);
	} else {
		// for other browsers
	var c = document.getElementById(box).getElementsByClassName("c");
	}
	if(c.length>0&&!c[0].blinding){
		c[0].blinding=true;
		if(c[0].style.display=="none"){
			Effect.BlindDown(c[0],{afterFinish:function(){
				c[0].blinding=false;
			},duration:transdur});
		}else{
			Effect.BlindUp(c[0],{afterFinish:function(){
				c[0].blinding=false;
			},duration:transdur});
		}
	}
	return false;
}