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1.0Transitional//ENhttp://___.w
3.org/TR/xhtml1/DTD/xhtml1-transitional.dtdhtmlxmlns=http://___.w
3.org/1999/xhtmlheadmetahttp-equiv=Content-Typecontent=text/html;charset=gb2312/title无标题文档/title/headbody/body/html!DOCTYPEhtmlPUBLIC-//W3C//DTDXHTML
1.0Transitional//ENhttp://___.w
3.org/TR/xhtml1/DTD/xhtml1-transitional.dtdhtmlxmlns=http://___.w
3.org/1999/xhtmlheadmetahttp-equiv=Content-Typecontent=text/html;charset=utf-8/titleFirefox3IE6IE7IE8上传__预览/titlestyletype=text/css#preview_fake{/*该对象用于在IE下显示预览__*/filter:progid:DXI__geTransform.Microsoft.AlphaI__geLoadersizingMethod=scale;}#preview_size_fake{/*该对象只用来在IE下获得__的原始尺寸,无其它用途*/filter:progid:DXI__geTransform.Microsoft.AlphaI__geLoadersizingMethod=i__ge;visibility:hidden;}/stylescripttype=text/j__ascriptfunctiononUploadIm__hangesender{if!sender.value.__tch/.jpg|.gif|.png|.bmp/i{alert__格式无效!;returnfalse;}varo__Preview=document.getElementByIdpreview;varo__PreviewFake=document.getElementByIdpreview_fake;varo__PreviewSizeFake=document.getElementByIdpreview_size_fake;ifsender.filessender.files
[0]{o__Preview.style.display=block;o__Preview.style.width=auto;o__Preview.style.height=auto;//Firefox因安全性问题已无法直接通过input[file].value获取完整的文件路径//支持FF
7.0以上版本的写法window.URL.createO__ectUrlsender.files
[0];o__Preview.src=sender.files
[0].getAsDataURL;}elseifo__PreviewFake.filters{//IE7IE8因安全性问题已无法直接通过input[file].value获取完整的文件路径//IE7IE8在设置本地__地址:img.src时相同环境有时无__常显示,因此用滤镜解决此问题sender.select;varimgSrc=document.selection.createRange.text;o__PreviewFake.filters.itemDXI__geTransform.Microsoft.AlphaI__geLoader.src=imgSrc;o__PreviewSizeFake.filters.itemDXI__geTransform.Microsoft.AlphaI__geLoader.src=imgSrc;//alerto__PreviewSizeFake.offsetWidth+-+o__PreviewSizeFake.offsetHeight;autoSizePreviewo__PreviewFakeo__PreviewSizeFake.offsetWidtho__PreviewSizeFake.offsetHeight;o__Preview.style.display=none;}}functiononPreviewLoadsender{autoSizePreviewsendersender.offsetWidthsender.offsetHeight;}functionautoSizePreviewo__PreoriginalWidthoriginalHeight{varzoomParam=clacImgZoomParam200150originalWidthoriginalHeight;o__Pre.style.width=zoomParam.width+px;o__Pre.style.height=zoomParam.height+px;}functionclacImgZoomParam__xWidth__xHeightwidthheight{varparam={width:widthheight:height};ifwidth__xWidth||height__xHeight{rateWidth=width/__xWidth;rateHeight=height/__xHeight;ifrateWidthrateHeight{param.width=__xWidth;param.height=height/rateWidth;}else{param.width=width/rateHeight;param.height=__xHeight;}}returnparam;}/script/headbodyinputid=upload_imgtype=fileonchange=onUploadIm__hangethis/divid=preview_fakeimgid=previewonload=onPreviewLoadthisstyle=display:none//divimgid=preview_size_fake//body/html。