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(style){
    style.className=style.className+'O';
}
function changeClass(style){
    style.className=style.className.substring(0,style.className.length-1);
}

function changeClassOver(obj,name){
    obj.className=obj.className+' '+name;
}
function changeClassOut(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 hide_show_div(hide_div,show_div){
	document.getElementById(hide_div).style.display='none';
	document.getElementById(show_div).style.display='block';
}
function bar_expand(bar){
if (bar.parentNode.getElementsByTagName('div')[0].style.display == 'none') {
		bar.parentNode.getElementsByTagName('div')[0].style.display = 'block';
		bar.className=bar.className+' panel_title_active';
    } else {
		bar.parentNode.getElementsByTagName('div')[0].style.display = 'none';
		bar.className='panel_title panel_title_hover';
    }
}