function Change(i)
{
	var j,temp,temp1;
	for(j=1;j<=2;j++)
	{
	    temp="search"+j;
	    temp2="td"+j;
	    //document.getElementById(temp).style.backgroundImage="url()";
	    document.getElementById(temp).style.color="#000000";
	    document.getElementById(temp2).style.display="none";
	}
	temp1="search"+i;
	temp3="td"+i;
	//document.getElementById(temp1).style.backgroundImage="url(/images/ttzcwtopyellow2_15.gif)";
	document.getElementById(temp1).style.color="#ffffff";
	document.getElementById(temp3).style.display="";
}

function check(theForm)
{
	if (document.f1.dire.value=='1' && theForm.name=="f1")
	{
	    if(document.f1.nei.value.replace(/^\s+|\s+$/g,'')=='' && document.f1.wai.value.replace(/^\s+|\s+$/g,'')=='' && document.f1.hou.value.replace(/^\s+|\s+$/g,'')=='')
	    {
	        alert("请输入查询参数！");
	        document.f1.nei.focus();
	        return false;
	    }
	}
	else
	{	    
	     if (theForm.keywords.value.substring(0,3) =="请输入" || theForm.keywords.value.replace(/^\s+|\s+$/g,'')=='')
	    {
		    alert("请输入查询内容！");
		    theForm.keywords.focus();
		    return false;
	    }
	}
		    return true;
}

function check_newhead(theForm)
//新样式提交函数，后面包含submit()动作
{
	if (document.f1.dire.value=='1' && theForm.name=="f1")
	{

		if(document.f1.nei.value.replace(/^\s+|\s+$/g,"")=="" && document.f1.wai.value.replace(/^\s+|\s+$/g,"")=="" && document.f1.hou.value.replace(/^\s+|\s+$/g,'')=="")
	    {	        
			alert("请在内径、外径、厚度文本框内至少输入一个参数后再查询！（单位毫米）");
  			document.f1.nei.focus(); 
	        return false;
	    }
	}
	else
	{	    
	     if (theForm.keywords.value.substring(0,3) =="请输入" || theForm.keywords.value.replace(/^\s+|\s+$/g,'')=='')
	    {
		    alert("请输入查询内容！");
		    theForm.keywords.focus();
		    return false;
	    }
	}
	document.f1.submit();
}

function changetype()
{
    
    if(document.f1.btype.value=='3')
    {
		//document.f1.ltype.style.modelSelectArea.width="200px";
		document.f1.ltype.style.display="block";
    }
    else
    {
    	document.f1.ltype.style.display="none";
    }
}

function changedire()
{
	if(document.f1.dire.value=="0")
	{
		document.getElementById("dire0").style.display="";
		document.getElementById("dire1").style.display="none";
	}
	else
	{
		document.getElementById("dire0").style.display="none";
		document.getElementById("dire1").style.display="";
	}
}

function check_sbearing(){
    if (document.getElementById("Q").value=="请输入您要查询的关键词" ||  document.getElementById("Q").value.replace(/^\s+|\s+$/g,'')=='')
    {
        alert("请输入您要查询的关键词后再继续！");
        document.getElementById("Q").focus();
        return false;
    }
    document.getElementById("sbearing").charset="utf-8";
}