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prototype ÊÇÔÚ IE 4 ¼°ÆäÒÔºó°æ±¾ÒýÈëµÄÒ»¸öÕë¶ÔÓÚijһÀàµÄ¶ÔÏóµÄ·½·¨£¬¶øÇÒÌØÊâµÄµØ·½±ãÔÚÓÚ£ºËüÊÇÒ»¸ö¸øÀàµÄ¶ÔÏóÌí¼Ó·½·¨µÄ·½·¨£¡ÕâÒ»µã¿ÉÄÜÌýÆðÀ´»áÓеãÂÒ£¬±ð¼±£¬ÏÂÃæÎÒ±ãͨ¹ýʵÀý¶ÔÕâÒ»ÌØÊâµÄ·½·¨×÷ÒÑϽ²½â£º
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javascript call

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function QueryString(fieldName){
var urlString = location.search;
if (urlString != null) {
var typeQu = fieldName + "=";
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