function popup_window( url, id, width, height )
{
popup = window.open(url, id, 'toolbar=no, scrollbars=yes, location=no, statusbar=no, menubar=no, resizable=yes, width=' + width + ', height=' + height + '' );
popup.focus();
}

// Judgement whether exist words in textfield
function urlencode (str) {
	str = (str+'').toString();
	return encodeURIComponent(str).replace(/!/g, '%21').replace(/'/g, '%27').replace(/\(/g, '%28').
																	replace(/\)/g, '%29').replace(/\*/g, '%2A').replace(/%20/g, '+');
}

function customize_font_choice(){
	
   var exist_words = document.getElementById('artist_name').value;
   var url ='/siteadmin/index.php?display=customizeFont&mode=form&artist_name=';
   if(exist_words.length){
	   url = url + urlencode(exist_words);
	   window.location.href=url;
   }else{
	   document.getElementById('artist_name').focus();
   }
}