function getElementWidth(elem)
{return elem.offsetWidth;}
function getElementHeight(elem)
{return elem.offsetHeight;}
function getElementTop(elem)
{var yPos=elem.offsetTop;var tempEl=elem.offsetParent;while(tempEl!=null){yPos+=tempEl.offsetTop;tempEl=tempEl.offsetParent;}
return yPos;}
function getElementLeft(elem)
{xPos=elem.offsetLeft;tempEl=elem.offsetParent;while(tempEl!=null){xPos+=tempEl.offsetLeft;tempEl=tempEl.offsetParent;}
return xPos;}