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Picture scaled (CSS mandatory) JS code

Source: Internet
Author: User
Keywords Web page production Ajax javascript
Tags ajax code content css tutorial force function html http
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This article provides three kinds of pictures to shrink the code proportionally, one is to use the CSS tutorial to force the picture scaling down, after two is to use the Web page effects on the picture proportionally to shrink the code

<html xmlns= "http://www.jzread.com/1999/xhtml" >
<head>
<meta http-equiv= "Content-type" content= "HTML; charset=gb2312 "/>
<title> image Scaling (CSS mandatory) page special effects code </title>

<style>
<!--CSS to force a proportional reduction of the picture, in many cases, without this method, will increase the IE load. -->
. thumbimage {
max-width:50px;
max-height:50px;
}
* HTML. Thumbimage {
Width:expression (This.width > && this.width > This.height 50:true);
Height:expresion (This.height > 50:true);
}

</style>

</head>

<body>
<img src= "/jscss/demoimg/wall3.jpg" >
</body>
</html>


Yahoo picture's scaled down code::


<script type= "text/web Effects" >
function Setimgsize (img,width,height) {
var maxwidth=width;//set Picture width limit
var maxheight=height;//set Picture height limit
var heightwidth=img.offsetheight/img.offsetwidth;//set aspect ratio
var widthheight=img.offsetwidth/img.offsetheight;//set ratio of width to height
if (img.offsetwidth>maxwidth) {
Img.width=maxwidth;
Img.height=maxwidth*heightwidth;
}
if (img.offsetheight>maxheight) {
Img.height=maxheight;
Img.width=maxheight*widthheight;
}
}

</script>


Uses: <img src= "/www.jzread.com/logo-yy.gif" border=0  onload= "setimgsize (this,132,160);"
<script language= "Web Effects" >
<!--
var flag=false;
Function DrawImage (IMGD) {
var image=new image ();
Image.src=imgd.src;
if (image.width>0 && image.height>0) {
Flag=true;
if (image.width/image.height>= 180/110) {
  if (image.width>180) {
   imgd.width=180;
   imgd.height= (image.height*110)/image.width;
 }else{
   imgd.width=image.width
   imgd.height=image.height;
 }
 /*imgd.alt= "bigpic" */
}
else{
  if (image.height>110) {
   imgd.height=110 ;
   imgd.width= (image.width*110)/image.height;
 }else{
   imgd.width=image.width
   imgd.height=image.height;
 }
  /*imgd.alt= "Bigpic"/
}
}
}
//-->
</script>

<img src= "http://www.jzread.com/skin/default/imga/logo.gif" border=0 onload= "DrawImage" (this); >
Method four pictures scaled (CSS mandatory) JS code

<img src= "..." alt= "onload=" resizeimage (this)/>
<script type= "Text/javascript" >
function Resizeimage (obj) {
Obj.width = obj.width > && obj.width > Obj.height? 50:auto;
Obj.height = obj.height > 50? 50:auto;
}
</script>

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
css picture center resize picture css html picture link code upload picture html code add picture html code insert picture html code css background picture opacity
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