function trimTo(field,n){
	if(field.value.length>n){
		field.value = field.value.substring(0,n);
		alert('Toto pole má maximální délku '+n+' znaků');
	}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
 }

 var DEFAULT_STATUS = ""
 window.defaultStatus = DEFAULT_STATUS;

 function Wstat(txt) {
         if (txt)
                 window.status = txt;
        else
                window.status = DEFAULT_STATUS;
        return true;
 }