function checksearch(ik){
switch(ik)
   {
   case 0:
     keyinput=searchform0.keywords;
	 break;
   case 1:
     keyinput=searchform1.keywords;
	 break;
   case 2:
     keyinput=searchform2.keywords;
	 break;
   case 3:
     keyinput=searchform3.keywords;
	 break;
   case 4:
     keyinput=searchform4.keywords;
	 break;
   case 5:
	 keyinput=searchform5.keywords;
	 break;
   default:
     return false;
   }
   
   keyinput.value=keyinput.value.replace(/(^\s*)|(\s*$)/g,"");
   if(keyinput.value==""||(keyinput.value.indexOf("输入"))>0||(keyinput.value.indexOf("如"))>0){
	   alert("请输入要搜索的关键字");
	   keyinput.focus();
	   return false
	   }
   if(keyinput.value.length==1){
	   alert("请输入详细一点的关键字");
	   keyinput.focus();
	   return false;
   }
   		eval('searchform'+ik).action +=  '&keywords=' + keyinput.value;
       return true;
}
function setval(input){
	if((input.value.indexOf("输入"))>0 || input.value==input.defaultValue)
input.value="";
}
function searchMarket(){
	var word=searchmarket.serchText.value.replace(/(^\s*)|(\s*$)/g,"");
	   if(word=="" ||(word==searchmarket.serchText.defaultValue)){
		   alert("请输入要搜索的关键字");
		   searchmarket.serchText.focus();
		   return false;}
	   if(word.length==1){
		   alert("请输入详细一点的关键字");
		   searchmarket.serchText.focus();
		   return false;
	   }
	   return true;
}