document.onmousemove = function(e){
//console.log("e.clientX:"+e.clientX);
//console.log("coolPlay.offsetLeft:"+coolPlay.offsetLeft);
var leftV = e.clientX - coolPlay.offsetLeft;
//console.log("coolPlay.offsetLeft:"+coolPlay.offsetLeft);
//console.log("leftV:"+leftV);
if(leftV <= 0){
leftV = 0;
};
if(leftV >= coolPlay.offsetWidth){
leftV = coolPlay.offsetWidth-10;
};
cDrag.style.left = leftV+"px";
//console.log(leftV);
};
};