var _this=DOMManager.prototype;function DOMManager(){}_this.hideCombos=function(){for(var arCombo=document.getElementsByTagName("select"),i=0;i<arCombo.length;i++)arCombo[i].style.visibility="hidden"};_this.showCombos=function(){for(var arCombo=document.getElementsByTagName("select"),i=0;i<arCombo.length;i++)arCombo[i].style.visibility="inherit"};