javascript根据className查找对象

 

/** 2012-6-21 begin fz 通过class查找对象 **/

function getElementsByClassName(className,tagName){

    var classElements = [];

    var tagElements = document.getElementsByTagName(tagName);

    for (var i=0; i<tagElements.length; i++){

        if (tagElements[i].className == className){

            classElements[classElements.length] = tagElements[i];

            //alert(classElements.length);

        }

    }

    return classElements;

}

function disOrShowFunc(){

    var elements = getElementsByClassName("disOrShow","td");

    if(elements.length > 0){

        for(var i=0;i<elements.length;i++){

            elements[i].style.display = "none";

        }

    }

    document.all.mytable.width = "1000";

}

if(document.all.searchType.value == "hc"){

    disOrShowFunc();

}

/** 2012-6-21 end fz 通过class查找对象 **/

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