<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title> new document </title>
<meta name="generator" content="editplus" />
<meta name="author" content="Gao YiXiang" />
<meta name="email" content="[email protected]" />
<meta name="keywords" content="javascript dhtml dom" />
<meta name="description" content="I love web development." />
</head>
<body>
<img id="imgShow1" src="images/1.gif">
<form>
<select id="sltOpt1" name="offerState">
<option value="1" size="6" style="color:#FF9C00;"> 水晶 </option>
<option value="2" size="6" style="color:#FF9C00;"> 金属 </option>
<option value="3" size="6" style="color:#FF9C00;"> 粮食 </option>
<option value="4" size="6" style="color:#FF9C00;"> 银币 </option>
</select>
</form>
<img id="imgShow2" src="images/1.gif">
<form>
<select id="sltOpt2" name="offerState">
<option value="1" size="6" style="color:#FF9C00;"> 水晶 </option>
<option value="2" size="6" style="color:#FF9C00;"> 金属 </option>
<option value="3" size="6" style="color:#FF9C00;"> 粮食 </option>
<option value="4" size="6" style="color:#FF9C00;"> 银币 </option>
</select>
</form></body>
<script type="text/javascript">
<!--
function w()
{
var i;
for(i=1;;i++)
{var oImg = document.getElementById("imgShow"+i);
oImg.onerror = function()
{
this.alt = this.src;
};var oSlt = document.getElementById("sltOpt"+i);
oSlt.onchange = function()
{
oImg.src = "images" +"/"+ this.value + ".gif";
};}else{break;}
}
//-->
</script>
</html>
因为在页面上的多个地方要用到同样的一个效果,为了简化一下代码,我想在用控件名称+i的形式来表示变量,可是发现页面的js运行不正常,不知道那里错了,大家帮我看看
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title> new document </title>
<meta name="generator" content="editplus" />
<meta name="author" content="Gao YiXiang" />
<meta name="email" content="[email protected]" />
<meta name="keywords" content="javascript dhtml dom" />
<meta name="description" content="I love web development." />
</head>
<body>
<img id="imgShow1" src="images/1.gif">
<form>
<select id="sltOpt1" name="offerState">
<option value="1" size="6" style="color:#FF9C00;"> 水晶 </option>
<option value="2" size="6" style="color:#FF9C00;"> 金属 </option>
<option value="3" size="6" style="color:#FF9C00;"> 粮食 </option>
<option value="4" size="6" style="color:#FF9C00;"> 银币 </option>
</select>
</form>
<img id="imgShow2" src="images/1.gif">
<form>
<select id="sltOpt2" name="offerState">
<option value="1" size="6" style="color:#FF9C00;"> 水晶 </option>
<option value="2" size="6" style="color:#FF9C00;"> 金属 </option>
<option value="3" size="6" style="color:#FF9C00;"> 粮食 </option>
<option value="4" size="6" style="color:#FF9C00;"> 银币 </option>
</select>
</form></body>
<script type="text/javascript">
<!--
function w()
{
var i;
for(i=1;;i++)
{var oImg = document.getElementById("imgShow"+i);
oImg.onerror = function()
{
this.alt = this.src;
};var oSlt = document.getElementById("sltOpt"+i);
oSlt.onchange = function()
{
oImg.src = "images" +"/"+ this.value + ".gif";
};}else{break;}
}
//-->
</script>
</html>
因为在页面上的多个地方要用到同样的一个效果,为了简化一下代码,我想在用控件名称+i的形式来表示变量,可是发现页面的js运行不正常,不知道那里错了,大家帮我看看
======================else{break;} 你的if在哪里?
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title> new document </title>
<meta name="generator" content="editplus" />
<meta name="author" content="Gao YiXiang" />
<meta name="email" content="[email protected]" />
<meta name="keywords" content="javascript dhtml dom" />
<meta name="description" content="I love web development." />
</head>
<body>
<img id="imgShow1" src="images/1.gif">
<form>
<select id="sltOpt1" name="offerState">
<option value="1" size="6" style="color:#FF9C00;"> 水晶 </option>
<option value="2" size="6" style="color:#FF9C00;"> 金属 </option>
<option value="3" size="6" style="color:#FF9C00;"> 粮食 </option>
<option value="4" size="6" style="color:#FF9C00;"> 银币 </option>
</select>
</form>
<img id="imgShow2" src="images/1.gif">
<form>
<select id="sltOpt2" name="offerState">
<option value="1" size="6" style="color:#FF9C00;"> 水晶 </option>
<option value="2" size="6" style="color:#FF9C00;"> 金属 </option>
<option value="3" size="6" style="color:#FF9C00;"> 粮食 </option>
<option value="4" size="6" style="color:#FF9C00;"> 银币 </option>
</select>
</form> </body>
<script type="text/javascript">
<!--
function w()
{
var i;
for(i=1;;i++)
{var oImg = document.getElementById("imgShow"+i);
oImg.onerror = function()
{
this.alt = this.src;
}; var oSlt = document.getElementById("sltOpt"+i);
oSlt.onchange = function()
{
oImg.src = "images" +"/"+ this.value + ".gif";
};}
}
//-->
</script>
</html>
因为在页面上的多个地方要用到同样的一个效果,为了简化一下代码,我想在用控件名称+i的形式来表示变量,可是发现页面的js运行不正常,不知道那里错了,大家帮我看看
<head>
<title> new document </title>
<meta name="generator" content="editplus" />
<meta name="author" content="Gao YiXiang" />
<meta name="email" content="[email protected]" />
<meta name="keywords" content="javascript dhtml dom" />
<meta name="description" content="I love web development." />
</head>
<body>
<img id="imgShow1" src="images/1.gif">
<form>
<select id="sltOpt1" name="offerState" onchange="imgShow1.src='images//'+this.value+'.jpg'">
<option value="1" size="6" style="color:#FF9C00;"> 水晶 </option>
<option value="2" size="6" style="color:#FF9C00;"> 金属 </option>
<option value="3" size="6" style="color:#FF9C00;"> 粮食 </option>
<option value="4" size="6" style="color:#FF9C00;"> 银币 </option>
</select>
</form>
<img id="imgShow2" src="images/1.gif">
<form>
<select id="sltOpt1" name="offerState" onchange="imgShow2.src='images//'+this.value+'.jpg'">
<option value="1" size="6" style="color:#FF9C00;"> 水晶 </option>
<option value="2" size="6" style="color:#FF9C00;"> 金属 </option>
<option value="3" size="6" style="color:#FF9C00;"> 粮食 </option>
<option value="4" size="6" style="color:#FF9C00;"> 银币 </option>
</select>
</form> </body>
</html>
{
oImg.src = "images" +"/"+ this.value + ".gif";
}
============
oSlt.onchange = function()
{
document.getElementById("imgShow"+i).src = "images" +"/"+ this.value + ".gif";
}