function classChange(itemClass) {
    if(document.getElementById("search_box")){
        if (document.getElementById("search_box").className == "show") {
            document.getElementById("search_box").className = "hide";
        }
        else {
        document.getElementById("search_box").className = "show";
        }
    }
} 

var newwindow;
function popup(url)
{
    newwindow=window.open(url,'name','height=380, width=350, scrollbars=yes, toolbar=no, menubar=no, resizable=yes');
    if (window.focus) {newwindow.focus()}
}
function popuppic(url)
{
    newwindow=window.open(url,'name','height=380,width=350, scrollbars=no, toolbar=no, menubar=no, resizable=yes');
    if (window.focus) {newwindow.focus()}
}