字符在FORM中坠落

字符在FORM中坠落

下面框中为脚本显示区

脚本说明：

把如下代码加入<body>区域中:

<script language="javascript">

function drip(){

wordy="南京有线宽带网";

document.hey.a.value="";

document.hey.b.value="";

document.hey.c.value="";

document.hey.d.value="";

word="";

beat=0;

aa=0;

bb=0;

cc=0;

dd=0;

lo=wordy.length;

drop();

}

function drop(){

if(beat<=lo*3+1){

beat=beat+1;

if(beat<=1){

document.hey.a.value=wordy;

}

if(beat>1&&beat<=lo+1){

fin="";

aa=aa+1;

for(var x=0;x<=aa-1;x++){

fin=fin+" ";

}

fin=fin+wordy.substring(aa,lo);

document.hey.a.value=fin;

document.hey.b.value=wordy.substring(0,aa);

}

if(beat>lo+1&&beat<=lo*2+1){

fin="";

bb=bb+1;

for(var x=0;x<=bb-1;x++){

fin=fin+" ";

}

fin=fin+wordy.substring(bb,lo);

document.hey.b.value=fin;

document.hey.c.value=wordy.substring(0,bb);

}

if(beat>lo*2+1&&beat<=lo*3+1){

fin="";

cc=cc+1;

for(var x=0;x<=cc-1;x++){

fin=fin+" ";

}

fin=fin+wordy.substring(cc,lo);

document.hey.c.value=fin;

document.hey.d.value=wordy.substring(0,cc);

}

setTimeout("drop()",200);

}

else{

document.hey.d.value=wordy;

}

}

</script>

<form name="hey">

<input type="text" name="a" size=12><br>

<input type="text" name="b" size=12><br>

<input type="text" name="c" size=12><br>

<input type="text" name="d" size=12><br><BR>

<input type="button" name="start" value="Start" onclick="drip()">