function $(str){
	return document.getElementById(str);
}
function phSwitch(hide){
	var nav=$('nav');
	var project=$('project');
	/* from photo */
	var phSwitch=$('phSwitch');
	var pAbout=$('photoAbout');
	if((nav)&&(project)&&(phSwitch)){
		if(hide){
			nav.style.display='none';
			project.style.display='none';
			if(pAbout){
				pAbout.style.display='none';
			}
			phSwitch.innerHTML='Show nav';
			phSwitch.href='javascript:phSwitch(false);';
		}else{
			nav.style.display='block';
			project.style.display='block';
			if(pAbout){
				pAbout.style.display='block';
			}
			phSwitch.innerHTML='Photo only';
			phSwitch.href='javascript:phSwitch(true);';
		}
	}
}
function pnav(show){
	//alert('go');
	var projs=$('projNav');
	if((show!=null)||(projs.style.display=="none")){
		projs.style.display="block";
		//alert('showing');
	}else{
		projs.style.display="none";
		//alert('hidden');
	}
}
function sizePhoto(){
	var photo=$('photo');
	if(photo){
		if(photo.width>=photo.height){
			photo.style.width='500px';
		}else if(photo.height>photo.width){
			photo.style.height='500px';
		}
	}
}