function searchV(field,text) {
    if (field.value == text) {
        field.value = '';
    }
}

function searchN(field,text) {
    if (field.value == '') {
        field.value = text;
    }
}

function preloadImages(url,pictures){    
    if (document.images) {        
        preload_image_object = new Image();
        image_url = new Array();
        image_url = pictures.split(",");
        
        var i = 0;
        for(i=0; i<=image_url.length-1; i++){
            preload_image_object.src = url+image_url[i];
        }
    }
} 

function changeClassO(obj,name){
    obj.className=obj.className+' '+name;
}

function changeClass(obj,name){
    obj.className=obj.className.substring(0,obj.className.length-(name.length+1));
}

function changeImageOver(image,over){
	var ext=image.src.substring(image.src.length-4,image.src.length);
	var file=image.src.substring(0,image.src.length-4);
	image.src=file+over+ext;
}

function changeImage(image,over){
	var over_size=over.length;
	var ext=image.src.substring(image.src.length-4,image.src.length);
	var file=image.src.substring(0,image.src.length-(over_size+4));
	image.src=file+ext;
}

function submitform(myform){
	document.getElementById(myform).submit();
}

function showText(obj){
	obj.parentNode.getElementsByTagName('div')[0].style.display='none';
	obj.parentNode.getElementsByTagName('div')[1].style.display='block';
}
function hideText(obj){
	obj.parentNode.getElementsByTagName('div')[0].style.display='block';
	obj.parentNode.getElementsByTagName('div')[1].style.display='none';
}

var aktDiv1 = "";
var aktDiv2 = "";
function hideDiv(mainDiv,subDiv) {
   if (aktDiv1 != "" && aktDiv2 != "") {
        document.getElementById(aktDiv1).style.display='block';
        document.getElementById(aktDiv2).style.display='none';
   }
        document.getElementById(mainDiv).style.display='none';
        document.getElementById(subDiv).style.display='block';
        aktDiv1 = mainDiv;
        aktDiv2 = subDiv;
}
var aktDiv = new Array();
function item_expand(image,id){
if (aktDiv[id] == undefined || aktDiv[id] == false) {
        image.src="./images/icon_archive_expanded.gif";
		document.getElementById(id).getElementsByTagName('div')[0].style.display = 'block';
        aktDiv[id] = true;
    } else {
        image.src="./images/icon_archive_closed.gif";
		document.getElementById(id).getElementsByTagName('div')[0].style.display = 'none';
        aktDiv[id] = false;
    }
}