js添加水印（文字+图片水印效果）

     /**
         * 文字加图片水印效果
         * id 要加水印的区域
         * watermarkImg 水印为图片的图片url
         * watermarkText 水印文字
         */
        
      

   function watermarkWord(id，watermarkImg , watermarkText) {
            var screenHeight = window.screen.height
            var watermarkImg = watermarkImg ;
            var watermarkText =  watermarkText;
            
            if (navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.match(/9./i) == "9.") {
                var step = 180 / 480 * screenHeight;
                for (var i = 0; i <= parseInt($("body").height() / step); i++) {
                    $(\'body\').append(\'<div style="z-index:-999;width:100%;text-align:center;opacity:0.2;color:#000;position:absolute;top:\' + step * (i) + \'px;font-size:2em;transform:rotate(-30deg); -ms-transform:rotate(-30deg); -o-tranform:rotate(-30deg); -webkit-transform:rotate(-30deg); -moz-transform:rotate(-30deg);filter:progid:DXImageTransform.Microsoft.Alpha(opacity=10));">\' + watermarkText + \'<br /><img style="width:8em;" src="\' + watermarkImg + \'" /></div>\');
                }
            } else {
                var step = 180 / 480 * screenHeight;
                for (var i = 0; i <= parseInt($("body").height() / step); i++) {
                    $(\'body\').append(\'<div style="z-index:-999;width:100%;text-align:center;opacity:0.5;color:#000;position:absolute;top:\' + step * (i) + \'px;font-size:2em;transform:rotate(-30deg); -ms-transform:rotate(-30deg); -o-tranform:rotate(-30deg); -webkit-transform:rotate(-30deg); -moz-transform:rotate(-30deg);filter:progid:DXImageTransform.Microsoft.Alpha(opacity=10) progid:DXImageTransform.Microsoft.Matrix(sizingMethod=\\'auto expand\\', M11=0.866025404, M12=0.5, M21=-0.5, M22=0.866025404);">\' + watermarkText + \'<br /><img  style="width:8em;" src="\' + watermarkImg + \'" /></div>\');
                }
            }
        }

　　

   function watermarkWord(id，watermarkImg , watermarkText) {
            var screenHeight = window.screen.height
            var watermarkImg = watermarkImg ;
            var watermarkText =  watermarkText;
            
            if (navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.match(/9./i) == "9.") {
                var step = 180 / 480 * screenHeight;
                for (var i = 0; i <= parseInt($("body").height() / step); i++) {
                    $(\'body\').append(\'<div style="z-index:-999;width:100%;text-align:center;opacity:0.2;color:#000;position:absolute;top:\' + step * (i) + \'px;font-size:2em;transform:rotate(-30deg); -ms-transform:rotate(-30deg); -o-tranform:rotate(-30deg); -webkit-transform:rotate(-30deg); -moz-transform:rotate(-30deg);filter:progid:DXImageTransform.Microsoft.Alpha(opacity=10));">\' + watermarkText + \'<br /><img style="width:8em;" src="\' + watermarkImg + \'" /></div>\');
                }
            } else {
                var step = 180 / 480 * screenHeight;
                for (var i = 0; i <= parseInt($("body").height() / step); i++) {
                    $(\'body\').append(\'<div style="z-index:-999;width:100%;text-align:center;opacity:0.5;color:#000;position:absolute;top:\' + step * (i) + \'px;font-size:2em;transform:rotate(-30deg); -ms-transform:rotate(-30deg); -o-tranform:rotate(-30deg); -webkit-transform:rotate(-30deg); -moz-transform:rotate(-30deg);filter:progid:DXImageTransform.Microsoft.Alpha(opacity=10) progid:DXImageTransform.Microsoft.Matrix(sizingMethod=\\'auto expand\\', M11=0.866025404, M12=0.5, M21=-0.5, M22=0.866025404);">\' + watermarkText + \'<br /><img  style="width:8em;" src="\' + watermarkImg + \'" /></div>\');
                }
            }
        }

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