function ser(){
	if((tser.value).replace(/\s/,"")==""){alert("请输入关键词！");tser.focus();return false;}
	location.href="products.asp?ser="+escape(tser.value);
	}
function pagechange(){
	}
function leftonc(x){
	aty=parseInt(document.getElementById("alltype").innerHTML);
	for(i=1;i<=aty;i++){
	leftl=eval("leftl"+i);
	leftimg=eval("leftimg"+i);
	leftl.style.display="none";leftimg.src="img/jia.gif";
		}
	leftl=eval("leftl"+x);
	leftimg=eval("leftimg"+x);
	if(leftl.style.display==""){leftl.style.display="none";leftimg.src="img/jia.gif";}else{leftl.style.display="";leftimg.src="img/jian.gif";}
	}