function detectBrowser(){this.supportLayer=false;this.supportDOM=false;this.supportAll=false;this.isGecko=false;this.isOpera=false;this.isOpera5=false;this.isOpera6=false;this.isIE=false;this.isIE4=false;if(document.layers)this.supportLayer=true;if(document.getElementById)this.supportDOM=true;if(document.all)this.supportAll=true;if(navigator.userAgent.indexOf("Gecko")!=-1)this.isGecko=true;else if(navigator.userAgent.indexOf("Opera")!=-1){this.isOpera=true;if(navigator.userAgent.indexOf("Opera 5")!=-1)this.isOpera5=true;else if(navigator.userAgent.indexOf("Opera/5")!=-1)this.isOpera5=true;if(navigator.userAgent.indexOf("Opera 6")!=-1)this.isOpera6=true;else if(navigator.userAgent.indexOf("Opera/6")!=-1)this.isOpera6=true}else if(navigator.userAgent.indexOf("IE")!=-1){this.isIE=true;if(navigator.userAgent.indexOf("MSIE 4")!=-1)this.isIE4=true}}var browser=new detectBrowser