/*
//////////////////////////////////////////////
Funktionen für Bestellformulare von Dokumenten
//////////////////////////////////////////////
*/

function showBigImg(e, imgID) {

    var posx = 0;
    var posy = 0;
    if (!e) var e = window.event;
    if (e.pageX || e.pageY)     {
        posx = e.pageX;
        posy = e.pageY;
    }
    else if (e.clientX || e.clientY)     {
        posx = e.clientX + document.body.scrollLeft
            + document.documentElement.scrollLeft;
        posy = e.clientY + document.body.scrollTop
            + document.documentElement.scrollTop;
    }
    bigImg = document.getElementById(imgID);
    //document.getElementById("traceField").innerHTML=posx;
    
    bigImg.style.left = posx-107;
    bigImg.style.top = posy-150;
    bigImg.style.display = "block";

}

function hideBigImg(imgID) {

    document.getElementById(imgID).style.display = "none";

}

function addDoc(id){
    
    if(document.getElementById("fa_bestellen_cbx"+id).checked){
        document.getElementById("fa_ordered_docs").innerHTML=document.getElementById("fa_ordered_docs").innerHTML + "<div class='fa_formintro_ordered_doc' id='fa_formintro_ordered_doc" + id + "'>" + document.getElementById("fa_doctitle"+id).innerHTML + "</div>";
    }else{
        document.getElementById("fa_ordered_docs").removeChild(document.getElementById("fa_formintro_ordered_doc"+id));
    }
    
    if(document.getElementById("fa_ordered_docs").getElementsByTagName("div").length==1){
        document.getElementById("fa_nodocs_alert").style.display="block";
    }else{
        document.getElementById("fa_nodocs_alert").style.display="none";
    }
    //write documents into hidden field
    orderedDoksinput=document.doc_order_form.hid_ordered_docs;
    orderedDoksinput.value="";
    for(i=1;i<document.getElementById("fa_ordered_docs").getElementsByTagName("div").length;i++){
        orderedDok=document.getElementById("fa_ordered_docs").getElementsByTagName("div")[i].innerHTML;
        orderedDoksinput.value=orderedDoksinput.value+ " - " + orderedDok + "\n";
    }

}

function uncheckCheckbox(id){

    document.getElementById("fa_bestellen_cbx"+id).checked=false;

}