function Link2_POption_Change(Arr, PSelect, SSelect) 
{ 
    if (typeof PSelect != 'object'){PSelect = document.getElementById(PSelect);} 
    if (typeof SSelect != 'object'){SSelect = document.getElementById(SSelect);} 
     
    //默认参数EnableTip(是否加上提示项)设为否 
    var EnableTip=arguments[3]?arguments[3]:'Y'; 
    //默认参数TipName(提示项名称)设为'请选择' 
    var TipName=arguments[4]?arguments[4]:'全部型号'; 
     
    var i=0,j=0; 
     
    //清空二级下拉框选项 
     SSelect.length = 0; 
    if (EnableTip=='Y'){ 
        //二级下拉框添加提示项 
         SSelect.options[i] = new Option(TipName, ''); 
         i++; 
     } 
    //取得一级下拉框选择的值 
    var PSelectValue=PSelect.options[PSelect.selectedIndex].value; 
    //为二级下拉框添加选项 
     for (j=0; j < Arr.length; j++){ 
        if (Arr[j][2] == PSelectValue){ 
             SSelect.options[i] = new Option(Arr[j][0], Arr[j][1]); 
             i++; 
         } 
     } 

} 

function Link2_PSOption_Init(Arr,Arr1, PSelect, SSelect) 
{ 
    if (typeof PSelect != 'object'){PSelect = document.getElementById(PSelect);} 
    if (typeof SSelect != 'object'){SSelect = document.getElementById(SSelect);} 

    //默认参数PSelectValue(一级下拉框的预设值)设为0 
    var PSelectValue=arguments[4]?arguments[4]:0; 
    //默认参数SSelectValue(二级下拉框的预设值)设为0 
    var SSelectValue=arguments[5]?arguments[5]:0; 
    //默认参数PEnableTip(一级下拉框是否加上提示项)设为否 
    var PEnableTip=arguments[6]?arguments[6]:'Y'; 
    //默认参数PTipName(一级下拉框提示项名称)设为'请选择' 
    var PTipName=arguments[7]?arguments[7]:'全部手机'; 
    //默认参数SEnableTip(二级下拉框是否加上提示项)设为否 
    var SEnableTip=arguments[8]?arguments[8]:'Y'; 
    //默认参数STipName(二级下拉框提示项名称)设为'请选择' 
    var STipName=arguments[9]?arguments[9]:'全部型号'; 
	
    var i=0,ii=0,j=0; 

    if (SSelectValue>0){ 
        //根据二级下拉框的预设值，计算出一级下拉框的值 
         for (i=0;i < Arr1.length; i++){ 
            if (Arr1[i][2] > 0 && Arr1[i][1] == SSelectValue) PSelectValue=Arr1[i][2];
         } 
     } 
     
    //初始化下拉框选项 
     i=0; 
     ii=0; 
    //清空一级下拉框选项 
     PSelect.length = 0; 

    if (PEnableTip=='Y'){ 
		
        //一级下拉框添加提示项 
         PSelect.options[i] = new Option(PTipName, ''); 
         i++; 
     } 
    //清空二级下拉框选项 
     SSelect.length = 0; 
	
    if (SEnableTip=='Y'){ 
        //二级下拉框添加提示项 
         SSelect.options[ii] = new Option(STipName, ''); 
         ii++; 
     } 
    //为一级下拉框添加选项 
	
     for (j=0; j < Arr.length; j++){ 
        if (Arr[j][2] == 0){ 
             PSelect.options[i] = new Option(Arr[j][0], Arr[j][1]); 
            if (Arr[j][1] == PSelectValue){ 
                 PSelect.options[i].selected=true; 
             } 
             i++; 
         } 
     } 

    //取得一级下拉框的值 
    if (PSelectValue == 0) PSelectValue = PSelect.options[0].value; 

    //为二级下拉框添加选项 
    if (PSelectValue > 0){ 
         for (j=0; j < Arr1.length; j++){ 
            if (Arr1[j][2] == PSelectValue){ 
                 SSelect.options[ii] = new Option(Arr1[j][0], Arr1[j][1]); 
				
                if (Arr1[j][1] == SSelectValue){ 
                     SSelect.options[ii].selected=true; 
                 } //(Arr[j][1] == SSelectValue){ 
                 ii++; 
             } //(Arr[j][2] == PSelectValue){ 
         } //for (j=0; j < Arr.length; j++){ 
     } // if (PSelectValue > 0){ 
}