function zobrazSkryj(idecko){
el=document.getElementById(idecko).style;
el.display=(el.display == 'block')?'none':'block';
}

function zobraz(idecko){
el=document.getElementById(idecko).style;
el.display='block';
}
function skryj(idecko){
el=document.getElementById(idecko).style;
el.display='none';
}


function OpenResized(filename,wwidth,wheight) {
	wleft=(window.screen.width/2)-(wwidth/2)
	scrollbars="no"
	newheight=wheight
	if ((newheight+100)>window.screen.height) {
	   scrollbars="yes"
	   newheight=(window.screen.height-160)
	}
    wtop=(window.screen.height/2)-(newheight/2)
	window.open(filename,"","scrollbars="+scrollbars+",resizable=no,location=no,status=no,toolbar=no,menubar=no,width="+wwidth+",height="+newheight+",left="+wleft+",top="+wtop)
}