lastid = 0;

function openimg(idm, src){
	if(lastid!=0)
	{
	document.getElementById('thumb'+lastid).className='';	
	}
	document.getElementById('thumb'+idm).className='thumbact';
	//var leng = document.getElementById('thumb'+idm).src.length;
	//var way = document.getElementById('thumb'+idm).src.substring(0, leng-6);
	//var rash = document.getElementById('thumb'+idm).src.substring(leng-4, leng);
	document.getElementById('gallimg').src= src;
	//way + rash;
	
	lastid = idm;	
}