织梦同一页面调用多个相同的js联动菜单

<!--

//选择地区的二级分类(非通用调用)

function selNext(oj, v)

{

var newobj = oj.options;

var selv = parseInt(v);

var maxv = parseInt(v) + 500;

while(newobj.length > 0) {

oj.remove(0);

}

clear(oj);

if(selv==0)

{

aOption = document.createElement('OPTION');

aOption.text = '具体地区';

aOption.value = '0';

oj.options.add(aOption);

return;

}

else

{

aOption = document.createElement('OPTION');

aOption.text = '具体地区';

aOption.value = '0';

oj.options.add(aOption);

}

var str = '';

for(i=selv+1; i < maxv; i++)

{

if(!em_nativeplaces[i]) continue;

aOption = document.createElement('OPTION');

aOption.text = em_nativeplaces[i];

aOption.value = i;

oj.options.add(aOption);

}

}

//子类改变事件

function ChangeSon()

{

/*

var emname = this.name.replace('_son', '');

var topSelObj = document.getElementById(emname+'_top');

if(this.options[this.selectedIndex].value==0) {

document.getElementById('hidden_'+emname).value = topSelObj.options[topSelObj.selectedIndex].value;

}

else {

document.getElementById('hidden_'+emname).value = this.options[this.selectedIndex].value;

}

*/

// 由于支持3级联动,所以这里需要对自己改变进行重构

var emname = this.name.replace('_son', '');

// alert(emname);

if( document.getElementById(idname+'_sec') )

{

var oj = document.getElementById(idname + '_sec');

}

else

{

var oj = document.createElement('select');

oj.name = emname + '_sec';

oj.id = idname + '_sec';

oj.onchange = ChangeSec;

}

var v = this.options[this.selectedIndex].value;

document.getElementById('hidden_'+idname).value = v;

var newobj = oj.options;

var selarr = eval('em_'+emname+'s');

var selv = parseInt(v);

var maxv = parseInt(v) + 0.5;

// alert(maxv);

i = 0;

while(newobj && newobj.length > 0) oj.remove(0);

clear(oj);