function openclose (obj) {
	if (obj.parentNode.className=='opened') obj.parentNode.className='closed'; 
	else {
		cDiv=document.getElementsByTagName('div')
		for(l=0;l<cDiv.length;l++){
			oDiv=cDiv[l];
			if(oDiv.className=='opened')oDiv.className='closed'
		}
		obj.parentNode.className='opened'
	}
}

function popupWindow(a,b,c, s){
	eval('ujablak'+s+' = window.open(a,"BBB"+s,"width="+b+",height="+c+",menubar=0,resizable=0,scrollbars=0,status=0,titlebar=0,toolbar=0,left=0,top=0")')
	eval('ujablak'+s+'.moveTo((screen.width-b)/2,(screen.height-c)/2)')
	eval('ujablak'+s+'.focus()')
}