var myObjectElement = document.createElement('<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://active.macromedia.com/flash4/cabs/swflash.cab#version=4,0,0,0" width="448" height="175"></object>');

var myParamElement1 = document.createElement('<param name="movie" value="../flash/product1.swf">');  
var myParamElement2 = document.createElement('<param name="play" value="true">');
var myParamElement3 = document.createElement('<param name="loop" value="true">');
var myParamElement4 = document.createElement('<param name="quality" value="high">');

myObjectElement.appendChild(myParamElement1);
myObjectElement.appendChild(myParamElement2);
myObjectElement.appendChild(myParamElement3);
myObjectElement.appendChild(myParamElement4);

embedControlLocation_3.appendChild(myObjectElement);