电子备课系统

				var version = navigator.appVersion;
				
				function hookDiv(divid,imgid) {
					if (version.indexOf("Windows") != -1) {
						var thisDiv = document.getElementById(divid).style;
						if (imgid!="") {var thisImg = document.getElementById(imgid);}
						if (thisDiv.display == "") {
							thisDiv.display = "none";
							if (imgid!=""){thisImg.src = "../images/div_on.gif";}
						}
						else {
							thisDiv.display = "";
							if (imgid!=""){thisImg.src = "../images/div_off.gif";}
						}
					}
					return false;
				}
				
				function toggleProcedureOpen(currProcedure) {
					if (version.indexOf("Windows") != -1) {
						thisProcedure = document.getElementById("procedure"+currProcedure).style;
						thisExpander = document.getElementById("expander"+currProcedure);
						if (thisProcedure.display == "block" | thisProcedure.display == "") {
							thisProcedure.display = "none";
							thisExpander.src = "../../_sharedassets/expand.gif";
						}
						else {
							thisProcedure.display = "block";
							thisExpander.src = "../../_sharedassets/collapse.gif";
						}
					}
					return false
				}