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201607044209 windrunner414 staryty lbt001 imloli mashirozx huzikai0424 hengyuanma wlhost boc-chi-no amayaliu sakurafind maplespe langyo lcylym yahinstudio mbzj lucyliszt archrills plaidwork catcups danviyond makegrie akemimadoka mybbsky2012 hidamarink hh2233 woshinigege1 pjb1993 sid59520 730308009 hebronivy amamiyaling gokady hongshu-share kv-ux pragmatism0220 zanjie1999 meowperth shine0218 hujk-testrepo akilarlxh chirumori tianwei-home suiyi-light-web hiderx bcyysz qiuliqi lclichen chaojuwang moeloli coderexamples yiseofyiyi adhong sakuraes zsincos

    box.onmousedown=function(e){
	var Ocx=e.clientX;
	var Ocy=e.clientY;
	var Oboxx=parseInt(box.style.left);
	var Oboxy=parseInt(box.style.top);
        var Ch=document.documentElement.clientHeight;
        var Cw=document.documentElement.clientWidth;
        document.onmousemove=function(e){
            var Cx=e.clientX;
            var Cy=e.clientY;
            box.style.left=Oboxx+Cx-Ocx+"px";
            box.style.top=Oboxy+Cy-Ocy+"px";
            if(box.offsetLeft<0){
                box.style.left=0;
            }
            else if(box.offsetLeft+box.offsetWidth>Cw){
                box.style.left=Cw-box.offsetWidth+"px";
            }
            if(box.offsetTop-topCount<0){
                box.style.top=topCount+"px";
            }
            else if(box.offsetTop+box.offsetHeight-topCount>Ch){
                box.style.top=Ch-(box.offsetHeight-topCount)+"px";
            }
            ismove = true;
        };
        document.onmouseup=function(e){
            document.onmousemove = null;
            document.onmouseup = null;
        }
    }