/* Change text on click */
function removeDefaultFill( el, s ){
    if ( el.value == s ) {
        el.value = '';
    }	      
}
   
function insertDefaultFill( el, s ){     
    if ( el.value == '' ) {
        el.value = s;
    }
}
   
function checkDefault( value, defaultValue ){
    if ( value != defaultValue ){
        return true;
    }
    else {
        return false;
    }
}

/* Image change on hover */
function showBlok(aElm, BlokId) {
    var BlokObj = document.getElementById(BlokId);
    BlokObj.style.display = "block";
    //alert(BlokObj.id);
    for (var i = 1; i <= 9; i++) {  // alert(i);
        if (BlokObj.id != ("house-img" + i)) {
            //alert(i);
            document.getElementById("house-img" + i).style.display = "none";
        }
    }

}