function view(divId,divClass){
	var divs=document.getElementsByTagName('div');
	for(var i=0;i<divs.length;i++){
		if(divs[i].className==divClass){
			if(divs[i].id==divId) divs[i].style.display="block";
			else divs[i].style.display="none";
		}
	}
}