function open(element) { var obj= document.getElementById(element) obj.style.visibility="visible"; } function close(element) { var obj= document.getElementById(element) obj.style.visibility="hidden"; } function resize_iframe(element) { var height=window.innerWidth;//Firefox if (document.body.clientHeight) { height=document.body.clientHeight;//IE } //resize the iframe according to the size of the //window (all these should be on the same line) document.getElementById(element).style.height=parseInt(height-document.getElementById(element).offsetTop-5)+"px"; } // this will resize the iframe every // time you change the size of the window. window.onresize=resize_iframe; //Instead of using this you can use: // //-->