<html>\n <head>\n <meta charset=\"UTF-8\" \/>\n <script type=\"text\/javascript\">\n window.onload = function(){\n var e = document.getElementById('hoge');\n var flag;\n var clickOffsetTop;\n var clickOffsetLeft;\n\n e.onmousedown = function(evt){\n flag = 'on';\n evt = (evt) || window.event;\n clickOffsetTop = evt.clientY - e.offsetTop;\n clickOffsetLeft = evt.clientX - e.offsetLeft;\n if(!document.all){\n window.getSelection().removeAllRanges();\n }\n }\n document.onmouseup = function(){\n flag = 'off';\n }\n document.onmousemove = function(evt){\n evt = (evt) || window.event;\n if(flag == 'on'){\n e.style.top = evt.clientY - clickOffsetTop + 'px';\n e.style.left = evt.clientX - clickOffsetLeft + 'px';\n }\n }\n }\n <\/script>\n <style type=\"text\/css\">\n #hoge{\n width: 200px;\n height: 200px;\n text-align: center;\n border: 1px solid #666666;\n background: #cccccc;\n\n position: absolute;\n top: 50px;\n left: 50px;\n }\n <\/style>\n <\/head>\n <body>\n <div id=\"hoge\"><\/div>\n <\/body>\n<\/html>\n<\/code><\/pre>\n\u30c9\u30e9\u30c3\u30b0\u3092\u53ef\u80fd\u306b\u3059\u308b\u305f\u3081\u306b\u306f3\u3064\u306e\u30a4\u30d9\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u30de\u30a6\u30b9\u306e\u5de6\u30dc\u30bf\u30f3\u304c\u62bc\u4e0b\u3055\u308c\u305f\u3068\u304d\u306eonmousedown\u3001\u30de\u30a6\u30b9\u306e\u5de6\u30dc\u30bf\u30f3\u304c\u96e2\u3055\u308c\u305f\u3068\u304d\u306eonmouseup\u3001\u30de\u30a6\u30b9\u304c\u52d5\u304b\u3055\u308c\u305f\u3068\u304d\u306eonmousemove\u3067\u3059\u3002<\/p>\n
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