function leftTree(){
var value= document.getElementById("c1").value;
var tree = new YAHOO.widget.TreeView('tree_g_c');
var root = tree.getRoot();
// left_tree START //
var c1_flag_1 = false;
if(value == 1){
c1_flag_1 = true;
}
var G_C1_1 = new YAHOO.widget.TextNode('
Languages (106)', root, c1_flag_1);
new YAHOO.widget.TextNode('English (75)', G_C1_1, false);
new YAHOO.widget.TextNode('Chinese (3)', G_C1_1, false);
new YAHOO.widget.TextNode('Hindi/Urdu (0)', G_C1_1, false);
new YAHOO.widget.TextNode('Spanish (7)', G_C1_1, false);
new YAHOO.widget.TextNode('Russian (0)', G_C1_1, false);
new YAHOO.widget.TextNode('French (1)', G_C1_1, false);
new YAHOO.widget.TextNode('Arabic (0)', G_C1_1, false);
new YAHOO.widget.TextNode('Portuguese (0)', G_C1_1, false);
new YAHOO.widget.TextNode('Malay (0)', G_C1_1, false);
new YAHOO.widget.TextNode('Bengali (0)', G_C1_1, false);
new YAHOO.widget.TextNode('Japanese (10)', G_C1_1, false);
new YAHOO.widget.TextNode('German (1)', G_C1_1, false);
new YAHOO.widget.TextNode('Italian (3)', G_C1_1, false);
new YAHOO.widget.TextNode('Korean (1)', G_C1_1, false);
new YAHOO.widget.TextNode('Others (5)', G_C1_1, false);
var c1_flag_9 = false;
if(value == 9){
c1_flag_9 = true;
}
var G_C1_9 = new YAHOO.widget.TextNode('Working holiday (46)', root, c1_flag_9);
var c1_flag_8 = false;
if(value == 8){
c1_flag_8 = true;
}
var G_C1_8 = new YAHOO.widget.TextNode('Sightseeing (88)', root, c1_flag_8);
var c1_flag_2 = false;
if(value == 2){
c1_flag_2 = true;
}
var G_C1_2 = new YAHOO.widget.TextNode('Farms/Pastures (13)', root, c1_flag_2);
var c1_flag_4 = false;
if(value == 4){
c1_flag_4 = true;
}
var G_C1_4 = new YAHOO.widget.TextNode('Fisheries (1)', root, c1_flag_4);
var c1_flag_6 = false;
if(value == 6){
c1_flag_6 = true;
}
var G_C1_6 = new YAHOO.widget.TextNode('Snowies (5)', root, c1_flag_6);
var c1_flag_5 = false;
if(value == 5){
c1_flag_5 = true;
}
var G_C1_5 = new YAHOO.widget.TextNode('Islands / Tropical (5)', root, c1_flag_5);
var c1_flag_10 = false;
if(value == 10){
c1_flag_10 = true;
}
var G_C1_10 = new YAHOO.widget.TextNode('A day trip / Visit (26)', root, c1_flag_10);
var c1_flag_11 = false;
if(value == 11){
c1_flag_11 = true;
}
var G_C1_11 = new YAHOO.widget.TextNode('B&B / Hostel (33)', root, c1_flag_11);
var c1_flag_7 = false;
if(value == 7){
c1_flag_7 = true;
}
var G_C1_7 = new YAHOO.widget.TextNode('Others (33)', root, c1_flag_7);
// left_tree END //
tree.draw();
}