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89 lines
2.7 KiB
89 lines
2.7 KiB
/*
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省市联动
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new PCAS("Province","City")
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new PCAS("Province","City","吉林省")
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new PCAS("Province","City","吉林省","吉林市")
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省市地区联动
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new PCAS("Province","City","Area")
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new PCAS("Province","City","Area","吉林省")
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new PCAS("Province","City","Area","吉林省","松原市")
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new PCAS("Province","City","Area","吉林省","松原市","宁江区")
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注：省、市、地区提示信息选项的值为""(空字符串)
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*/
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PCAD="山东省$淄博市,张店区";
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SPT="--省份--";
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SCT="--城市--";
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SAT="--地区--";
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ShowT=0; //提示文字 0:不显示 1:显示
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if(ShowT){
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PCAD = SPT + "$" + SCT + "," + SAT + "#" + PCAD;
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}
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PCAArea = [];
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PCAP = [];
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PCAC = [];
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PCAA = [];
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PCAN = PCAD.split("#");
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for(i = 0; i < PCAN.length; i++){
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PCAA[i] = [];
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TArea = PCAN[i].split("$")[1].split("|");
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for(j = 0; j < TArea.length; j++){
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PCAA[i][j] = TArea[j].split(",");
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if (PCAA[i][j].length == 1) PCAA[i][j][1] = SAT;
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TArea[j] = TArea[j].split(",")[0]
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}
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PCAArea[i] = PCAN[i].split("$")[0] + "," + TArea.join(",");
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PCAP[i] = PCAArea[i].split(",")[0];
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PCAC[i] = PCAArea[i].split(',')
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}
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function PCAS(){
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this.SelP = document.getElementsByName(arguments[0])[0];
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this.SelC = document.getElementsByName(arguments[1])[0];
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this.SelA = document.getElementsByName(arguments[2])[0];
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this.DefP = this.SelA ? arguments[3] : arguments[2];
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this.DefC = this.SelA ? arguments[4] : arguments[3];
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this.DefA = this.SelA ? arguments[5] : arguments[4];
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this.SelP.PCA = this;
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this.SelC.PCA = this;
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this.SelP.onchange=function(){
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PCAS.SetC(this.PCA)
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};
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if (this.SelA) this.SelC.onchange=function(){
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PCAS.SetA(this.PCA)
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};
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PCAS.SetP(this)
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};
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PCAS.SetP=function(PCA){
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for(i = 0; i < PCAP.length; i++){
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PCAPT = PCAPV = PCAP[i];
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if (PCAPT == SPT) PCAPV = "";
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PCA.SelP.options.add(new Option(PCAPT, PCAPV));
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if (PCA.DefP == PCAPV) PCA.SelP[i].selected = true
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}
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PCAS.SetC(PCA)
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};
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PCAS.SetC=function(PCA){
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PI = PCA.SelP.selectedIndex;
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PCA.SelC.length = 0;
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for(i = 1; i < PCAC[PI].length; i++){
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PCACT = PCACV = PCAC[PI][i];
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if (PCACT == SCT) PCACV = "";
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PCA.SelC.options.add(new Option(PCACT, PCACV));
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if (PCA.DefC == PCACV) PCA.SelC[i - 1].selected = true
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}
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if (PCA.SelA) PCAS.SetA(PCA)
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};
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PCAS.SetA=function(PCA){
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PI = PCA.SelP.selectedIndex;
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CI = PCA.SelC.selectedIndex;
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PCA.SelA.length = 0;
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for(i = 1; i < PCAA[PI][CI].length; i++){
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PCAAT = PCAAV = PCAA[PI][CI][i];
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if (PCAAT == SAT) PCAAV = "";
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PCA.SelA.options.add(new Option(PCAAT, PCAAV));
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if (PCA.DefA == PCAAV) PCA.SelA[i - 1].selected = true
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}
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} |