function Make(Image,file) { //vymena obrazku
		Image.src=file;
	 
	}
	

function ObjOn(obj) {  //spusti filter (IE 5.5)
		obj.style.filter="progid:DXImageTransform.Microsoft.Alpha(style=2,opacity=0,finishopacity=100)";
    	}


function ObjOff(obj) {  //vypne filter (IE 5.5)
		obj.style.filter="";    
}

function ERBIK()
{
he=window.document.body.offsetHeight;
big=false;
if ( he > 450) {big=true;jetam="<img src=\"images/lefttop.gif\" width=\"179\" height=\"226\" hspace=\"0\" vspace=\"0\" border=\"0\" alt=\"Na úvodní stranu\">"}
    else jetam="<img src=\"images/lefttop-small.gif\" width=\"179\" height=\"96\" hspace=\"0\" vspace=\"0\" border=\"0\" alt=\"Na úvodní stranu\">";
} 

function TAJMR()
{
he=window.document.body.offsetHeight;
if (big & (he<450)) {document.location="vlevo.html"};
if (!big & (he>450)) {document.location="vlevo.html"};
timer =setTimeout("TAJMR()",3000)   
}