var form = document.soutez;
var radios = "rad";

function check(z,y,x, yTable) {
    var el = document.getElementById( radios+z+"-"+y+"-"+x );
    for (var i=0; i<=yTable; i++) {
        var elTest = radios+z+"-"+i+"-"+x;
        var elTest = document.getElementById(elTest);
        if ( (elTest.checked == true) && (i != y) ) {
	     el.checked=false;
	     break;
	}
    }
}