rem: if (el.style.display=="none"){ 
add: if (el.style.display=="none" || el.style.display==""){ 
context: function toggle_visibility(el){	if (el.style.display=="none"){		el.style.display = "block";	}	else{		el.style.display = "none";	}}
meta: 7272	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/7272/53059e59788adadf196e0f4ad99e19d8af1db979/functions.js/clean/serweb/html/js/functions.js