/* show category    */
       
function send_data(url, data){

	var obj , s =0;
	

	try {

		if (window.XMLHttpRequest)

			obj = new XMLHttpRequest();	

		else

			obj =new ActiveXObject('MSXML2.XMLHTTP.3.0');

			//s=1;

		obj.open('POST',url, true);

			//s=2

		obj.send(data);

	}catch(e){

		alert(e + s);

		return 1;

	}

	return 0;

}


function send_feedback(){

	var data=document.getElementById('textarea').value;

	if (data != null && data.length){

		rc = send_data('/card_email.php', data);

		if (rc != 1){

			document.getElementById('textarea_td').innerHTML='<strong>Thank you! Your response will be added finally after a check.</strong>';

			document.getElementById('button_td').innerHTML='';

		}

	}

}

function setdisplay(id, type){
    var obj = document.getElementById(id);
    if (obj) {
        obj.style.display = type;  
    }
    return obj;
}

function show_fullview(index) {
    var iframe = setdisplay('iframe'+index, 'block');
    if (iframe) {
        setdisplay('proj_nav', 'block');   
        setdisplay('sites', 'none');
        scroll(0,0);
    }
    current_project = index;
    return iframe;
}

function show_fullview2(index) {
    show_fullview(index);
}

function back_project(){

    setdisplay('iframe'+current_project, 'none');
    setdisplay('proj_nav', 'none');   
    setdisplay('sites', 'block');
}

function next_project(){ 
    var oldcurrent = current_project;
    setdisplay('iframe'+current_project, 'none');   
    var cnt = 0;
    while(!show_fullview(current_project+1) && cnt<100){
        ++cnt;
    };
    if (cnt==100) {                 
        current_project = oldcurrent;
        setdisplay('iframe'+oldcurrent, 'block');   
    }
}       

function prev_project(){ 
    var oldcurrent = current_project;
    setdisplay('iframe'+current_project, 'none');   
    var cnt = 100;
    while(!show_fullview(current_project-1) && cnt>-1){
        --cnt;
    };
    if (cnt==-1) {                 
        current_project = oldcurrent;
        setdisplay('iframe'+oldcurrent, 'block');   
    }
}