xhtml html mysql áûé åäìáíòíé èñçãì content management system çóêöçýé ãæþú ãäçåì êúáíãíé ßêè ãïñóíé javascript êõãíã cmsimple ãæçþú php áûé úñèíé èñãìé ãäêïíçê design ïáíá