function hideforms(strVis) {
			for (var n=0; n<document.forms.length; n++) {
				for(var i=0; i<document.forms[n].elements.length; i++){
					if(document.forms[n].elements[i].type == "select-one"){
						if(document.layers) {
							document.all = document.layers;
							document.forms[n].elements[i].visibility = strVis;
						} else {
							document.forms[n].elements[i].style.visibility = strVis;
						}
					}
				}
			}
		}