function createStyleTag() {
var head = document.getElementsByTagName('head')[0];
var isChrome = navigator.userAgent.toLowerCase().indexOf('chrome') > -1;
var isSafari = navigator.userAgent.toLowerCase().indexOf('safari') > -1;
var cssstring = ['caption {' + 'display: none;' +'}'];
if(!isChrome && !isSafari) {
	var styletag = document.createElement('style');
	styletag.setAttribute('type', 'text/css');
	head.appendChild(styletag);
   
	if(!window.ActiveXObject) {
		styletag.innerHTML = cssstring;
	} else {
		styletag.styleSheet.cssText = cssstring;
	}
}
}
createStyleTag();