// pop up scripts start here -------------------
function website(url){
	var webWin = window.open(url, 'website', 'toolbar=yes,location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,resizable=yes,width=780,height=530');
	webWin.focus();
}

//site navbar rollover script starts here-------
//preload images		
if (document.images)  {
button01=new Image();
button01.src="/common/images/hdr_artists_over.gif";
button02=new Image();
button02.src="/common/images/hdr_exhibitions_over.gif";
button03=new Image();
button03.src="/common/images/hdr_information_over.gif";
button04=new Image();
button04.src="/common/images/hdr_corporate_over.gif";
button05=new Image();
button05.src="/common/images/hdr_artists_red.gif";
button06=new Image();
button06.src="/common/images/hdr_exhibitions_red.gif";
button07=new Image();
button07.src="/common/images/hdr_information_red.gif";
button08=new Image();
button08.src="/common/images/hdr_corporate_red.gif";
}
//rollover On state
function imgOn(imgName) {
	if (document.images) {
  	document[imgName].src = "/common/images/hdr_" + imgName + "_over.gif";
  }
}
//rollover On Red state
function imgOnRed(imgName) {
	if (document.images) {
  	document[imgName].src = "/common/images/hdr_" + imgName + "_red.gif";
  }
}
//rollover Off state
function imgOff(imgName) {
	if (document.images)  {
  	document[imgName].src = "/common/images/hdr_" + imgName+ "_off.gif";
	}
}
//rollover Off Red state
function imgOffRed(imgName) {
	if (document.images)  {
  	document[imgName].src = "/common/images/hdr_" + imgName+ "_on.gif";
	}
}

// Determines the amount of vertical space to leave before and after the document within the browser
if (screen.width <= 800) {
	var marginSpacer = '';
	var marginRow = '';
}
else {
	var marginSpacer = '<img src="/common/images/spacer.gif" width="20" height="20">';
	var marginRow = '<tr><td colspan="8">' + marginSpacer + '</td></tr>';
}