// JavaScript Document
// this function must be wrapped inside onload event

function flatbudget() {
	var select1 = document.getElementById("min_budget");
var select2 = document.getElementById("max_budget");
    // empty select2
    while (select2.firstChild) {
        select2.removeChild(select2.firstChild);
    }
    if (select1.selectedIndex == 0) {
		return;
    }
    for (var i = select1.selectedIndex; i < select1.options.length; i++) {
        var o = document.createElement("option");
       o.value = select1.options[i].value;
        o.text = select1.options[i].value;
        select2.add(o);
    }
}

function roombudget() {
	var select1 = document.getElementById("min_budgetroom");
var select2 = document.getElementById("max_budgetroom");
    // empty select2
    while (select2.firstChild) {
        select2.removeChild(select2.firstChild);
    }
    if (select1.selectedIndex == 0) {
		return;
    }
    for (var i = select1.selectedIndex; i < select1.options.length; i++) {
        var o = document.createElement("option");
        o.value = select1.options[i].value;
        o.text = select1.options[i].value;
        select2.add(o);
    }
}

function pgbudget() {
	var select1 = document.getElementById("min_budgetpg");
var select2 = document.getElementById("max_budgetpg");
    // empty select2
    while (select2.firstChild) {
        select2.removeChild(select2.firstChild);
    }
    if (select1.selectedIndex == 0) {
		return;
    }
    for (var i = select1.selectedIndex; i < select1.options.length; i++) {
        var o = document.createElement("option");
        o.value = select1.options[i].value;
        o.text = select1.options[i].value;
        select2.add(o);
    }
}