the error is in this script:

Error: Constant string of unfinished
Caracter: 88

function mach(n, d) {
var p,i,x; if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=mach(n,d.layers[i].document);
if(!x && d.getElementById) x=d.getElementById(n); return x;
}
function bitte() {
var i,j=0,x,a=bitte.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
if ((x=mach(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}

Thanks !!!!

Is that a XOOPS script?

No, script generated by "social booksmark V0.3 module".