<style type=textcss>
.ip_input { width:20px; height:16px;
font:normal 12px 宋体; color:#000000; border:0px; text-align:center; position:relative; top:1px; }
.all_input { width:112; height:20px;
font:normal 8px 宋体; color:#000000; border:1px solid #000000; text-align:center; }
</style>
<script language=javascript>
function getPos(obj)
{
obj.focus();
var workRange=document.selection.createRange();
obj.select();
var allRange=document.selection.createRange();
workRange.setEndPoint("StartToStart",allRange);
var len=workRange.text.length;
workRange.collapse(false);
workRange.select();
return len;
}
function setCursor(obj,num)
{
range=obj.createTextRange();
range.collapse(true);
range.moveStart('character',num);
range.select();
}
function keyDownEvent(obj)
{
code=event.keyCode;
if(!((code>=48&&code<=57)||(code>=96&&code<=105)||code==190||code==110||code==13||code==9||code==39||code==8||code==46||code==99||code==37))
event.returnValue=false;
if(code==13)
event.keyCode=9;
if(code==110||code==190)
if(obj.value)
event.keyCode=9;
else
event.returnValue=false;
}
function keyUpEvent(obj0,obj1,obj2)
{
if (obj1.value > 255)
{
alert("填写范围必须在 0 - 255间");
obj1.value = obj1.value.substring(0, obj1.value.length - 1);
return;
}
code=event.keyCode
if(obj1.value.length>=3&&code!=37&&code!=
39&&code!=16&&code!=9&&code!=13)
obj2.focus();
if(code == 32)
obj2.focus();
if(code == 8 && obj1.value.length == 0)
{
obj0.focus();
setCursor(obj0,obj0.value.length);
}
if (code == 37 && (getPos(obj1) == 0))
{
obj0.focus();
setCursor(obj0,obj0.value.length);
}
if (code == 39 && (getPos(obj1) == obj1.value.length))
{
obj2.focus();
}
}
function keyUpEventForIp4(obj0,obj)
{
if (obj.value > 255)
{
alert("填写范围必须在 0 - 255间");
obj.value = obj.value.substring(0, obj.value.length - 1);
return;
}
if(code == 8 && obj.value.length == 0)
{
obj0.focus();
setCursor(obj0,obj0.value.length);
}
if (code == 37 && (getPos(obj) == 0))
{
obj0.focus();
setCursor(obj0,obj0.value.length);
}
}
function getipvalue(obj1,obj2,obj3,obj4,obj)
{
obj.value = obj1.value + "." + obj2.value + "."
+ obj3.value + "." + obj4.value;
alert(obj.value);
}
</script>
<form>
<div class=all_input>
<input name=ip1 class=ip_input maxlength=3
onkeydown=keyDownEvent(this) onkeyup=keyUpEvent(ip1,ip1,ip2)>.<input
name=ip2 class=ip_input maxlength=3 onkeydown=keyDownEvent(this) onkeyup=keyUpEvent(ip1,ip2,ip3)>.<input
name=ip3 class=ip_input maxlength=3 onkeydown=keyDownEvent(this) onkeyup=keyUpEvent(ip2,ip3,ip4)>.<input
name=ip4 class=ip_input maxlength=3 onkeydown=keyDownEvent(this) onkeyup=keyUpEventForIp4(ip3,ip4)>
<input name = ipvalue TYPE="hidden">
</div>
<INPUT TYPE="button" value = "getvalue" onmouseup=getipvalue(ip1,ip2,ip3,ip4,ipvalue)>
</form>
posted on 2009-06-02 13:12
长春语林科技 阅读(312)
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