var NNE = document.getElementById; 	// IE 5+  NN 6+
var IE4 = document.all; 			// IE 4

function FunPraha() {
    if (NNE) {
    	for (var i=0; i<=1; i++) {
//    		alert((document.getElementsByName('Ob')[i].value.replace(/^[ ]+/, '').replace(/[ ]+$/, '').toLowerCase() != 'praha'));
	    	if (document.getElementsByName('Ob')[i].value.replace(/^[ ]+/, '').replace(/[ ]+$/, '').toLowerCase() != 'praha') {
				document.getElementsByName('Ct')[i].disabled=true;
				document.getElementById('Praha'+i).style.color='silver';    			
			} else {
//				alert('qwe');
				document.getElementsByName('Ct')[i].disabled=false;
				document.getElementById('Praha'+i).style.color= '';
			}

/*                
			if ((document.getElementsByName('Ov')[i].value != 0) || (document.getElementsByName('Ob')[i].value.length > 2)) {
				document.getElementsByName('Su')[i].disabled=false;
				document.getElementsByName('Su')[i].style.color='black';
			} else {
				document.getElementsByName('Su')[i].disabled=true;
				document.getElementsByName('Su')[i].style.color='silver';
			}
*/                        
		}
	}
}

function getFocus(typ) {
    if (NNE) {
    	if (typ==1)
            document.getElementsByName('Pr')[0].focus();
        else
            document.getElementsByName('Fi')[0].focus();
    } else if (IE4) {
    	if (typ==1)
            document.all['Pr'].focus();
        else
            document.all['Fi'].focus();		
    }
}