<script>function setImagePreview() { var docObj=documentgetElementById("doc"); var imgObjPreview=documentgetElementById("preview");if(docObjfiles && docObjfiles[]){ //火狐下直接设img属性 imgObjPreviewstyledisplay = block; imgObjPreviewstylewidth = px; imgObjPreviewstyleheight = px; //imgObjPreviewsrc = docObjfiles[]getAsDataURL();//火狐以上版本不能用上面的getAsDataURL()方式获取需要一下方式 imgObjPreviewsrc = windowURLcreateObjectURL(docObjfiles[]); }else{ //IE下使用滤镜 ocObjselect(); var imgSrc = documentselectioncreateRange()text; var localImagId = documentgetElementById("localImag"); //必须设置初始大小 localImagIdstylewidth = "px"; localImagIdstyleheight = "px";//图片异常的捕捉防止用户修改后缀来伪造图片try{ localImagIdstylefilter="progid:DXImageTransformMicrosoftAlphaImageLoader(sizingMethod=scale)"; localImagIdfiltersitem ("DXImageTransformMicrosoftAlphaImageLoader")src = imgSrc; }catch(e){ alert("您上传的图片格式不正确请重新选择!"); return false; }imgObjPreviewstyledisplay = none; documentselectionempty(); } return true; }</script><body><input type=file name="doc" id="doc" onchange="javascript:setImagePreview();"><p><div id="localImag"><img id="preview" width= height= style="diplay:none" /></div></p>
