I have got my JavaScript working as seen here:
https://jsfiddle.net/yLg1qs04/3/
But how do I condense/shorten it so that it's not repeating itself so often and taking up so many lines?
$( '#mcnumber' ).keyup(function(){ //when a user types in input box
var mcnum = this.value;
if ( mcnum.charAt( 0 ) == '1' ) {
$("#1mcskel1").prop("checked", "checked");
} else if ( mcnum.charAt( 0 ) == '2' ) {
$("#1mcskel2").prop("checked", "checked");
} else if ( mcnum.charAt( 0 ) == '3' ) {
$("#1mcskel3").prop("checked", "checked");
} else if ( mcnum.charAt( 0 ) == '4' ) {
$("#1mcskel4").prop("checked", "checked");
} else if ( mcnum.charAt( 0 ) == '5' ) {
$("#1mcskel5").prop("checked", "checked");
} else if ( mcnum.charAt( 0 ) == '6' ) {
$("#1mcskel6").prop("checked", "checked");
} else if ( mcnum.charAt( 0 ) == '7' ) {
$("#1mcskel7").prop("checked", "checked");
} else if ( mcnum.charAt( 0 ) == '8' ) {
$("#1mcskel8").prop("checked", "checked");
} else if ( mcnum.charAt( 0 ) == '9' ) {
$("#1mcskel9").prop("checked", "checked");
} else if ( mcnum.charAt( 0 ) == '0' ) {
$("#1mcskel0").prop("checked", "checked");
}
})