FLASH遮挡DIV解决方案，兼容IE FF Chrome

添加了参数：wmode= " Opaque" // 将FLASH置于底层,FLASH优先级比DIV高, 所以会挡住DIV的；或：wmode="transparent"//设置透明，完整的

var params = { allowScriptAccess: "sameDomain", allowFullScreen: "true",wmode:"transparent",quality:"high",type:"application/x-shockwave-flash"};