function popupElement(element_id, w, h) {
	zoomed = window.open("popupElement.php?"+element_id ,"popupElement", "width="+w+",height="+h+",resizable=no,scrollbars=no,status=no,location=no,menubar=no,toolbar=no,");
	if (window.popupElement) {
		window.popupElement.focus();
	}
}

function zoomPic(pic) {
	zoomed = window.open("zoompic.php?f="+pic ,"zoomed", "width=450,height=480,resizable=no,scrollbars=no,status=no,location=no,menubar=no,toolbar=no,");
	if (window.zoomed) {
		window.zoomed.focus();
	}
}

preloaded_images = new Array();
function preloadImg() {
	var image_list = preloadImg.arguments;
	for(var i=0; i < image_list.length; i++) {
		preloaded_images[i] = new Image;
		preloaded_images[i].src = image_list[i];
	}
}

function detectBrowser() {
    // for more detailed browser detection see:
    // http://www.lipfert-malik.de/webdesign/tutorial/bsp/browser_js_test.html
    var browser = '';
    if(document.ids) browser = 'nn4';
    else if(!document.getElementById) browser = 'ie4';
    else if(document.clientWidth) browser = 'konq';
    else if(window.pkcs11) browser = 'mozilla';
    else if(document.uniqueID) browser = 'ie';
    else if(navigator.userAgent.toLowerCase().indexOf('chrome')>-1) browser = 'chrome';
    else if(navigator.userAgent.toLowerCase().indexOf('safari')>-1) browser = 'safari';
    else browser = 'op';
    return browser;
}